diff --git a/src/libs/qmljs/qmljsinterpreter.cpp b/src/libs/qmljs/qmljsinterpreter.cpp
index 7bf7b3ed220..0898bb77acf 100644
--- a/src/libs/qmljs/qmljsinterpreter.cpp
+++ b/src/libs/qmljs/qmljsinterpreter.cpp
@@ -170,13 +170,29 @@ public:
     }
 };
 } // namespace Internal
+
+FakeMetaObjectWithOrigin::FakeMetaObjectWithOrigin(FakeMetaObject::ConstPtr fakeMetaObject, const QString &originId)
+    : fakeMetaObject(fakeMetaObject)
+    , originId(originId)
+{ }
+
+bool FakeMetaObjectWithOrigin::operator ==(const FakeMetaObjectWithOrigin &o) const
+{
+    return fakeMetaObject == o.fakeMetaObject;
+}
+
+uint qHash(const FakeMetaObjectWithOrigin &fmoo, int seed)
+{
+    return qHash(fmoo.fakeMetaObject, seed);
+}
+
 } // namespace QmlJS
 
 CppComponentValue::CppComponentValue(FakeMetaObject::ConstPtr metaObject, const QString &className,
-                               const QString &packageName, const ComponentVersion &componentVersion,
-                               const ComponentVersion &importVersion, int metaObjectRevision,
-                               ValueOwner *valueOwner)
-    : ObjectValue(valueOwner),
+                                     const QString &packageName, const ComponentVersion &componentVersion,
+                                     const ComponentVersion &importVersion, int metaObjectRevision,
+                                     ValueOwner *valueOwner, const QString &originId)
+    : ObjectValue(valueOwner, originId),
       m_metaObject(metaObject),
       m_moduleName(packageName),
       m_componentVersion(componentVersion),
@@ -960,8 +976,8 @@ bool MemberProcessor::processGeneratedSlot(const QString &, const Value *)
     return true;
 }
 
-ObjectValue::ObjectValue(ValueOwner *valueOwner)
-    : m_valueOwner(valueOwner),
+ObjectValue::ObjectValue(ValueOwner *valueOwner, const QString &originId)
+    : m_valueOwner(valueOwner), m_originId(originId),
       _prototype(0)
 {
     valueOwner->registerValue(this);
@@ -1374,7 +1390,7 @@ const QLatin1String CppQmlTypes::defaultPackage("<default>");
 const QLatin1String CppQmlTypes::cppPackage("<cpp>");
 
 template <typename T>
-void CppQmlTypes::load(const T &fakeMetaObjects, const QString &overridePackage)
+void CppQmlTypes::load(const QString &originId, const T &fakeMetaObjects, const QString &overridePackage)
 {
     QList<CppComponentValue *> newCppTypes;
     foreach (const FakeMetaObject::ConstPtr &fmo, fakeMetaObjects) {
@@ -1382,7 +1398,7 @@ void CppQmlTypes::load(const T &fakeMetaObjects, const QString &overridePackage)
             QString package = exp.package;
             if (package.isEmpty())
                 package = overridePackage;
-            m_fakeMetaObjectsByPackage[package].insert(fmo);
+            m_fakeMetaObjectsByPackage[package].insert(FakeMetaObjectWithOrigin(fmo, originId));
 
             // make versionless cpp types directly
             // needed for access to property types that are not exported, like QDeclarativeAnchors
@@ -1391,7 +1407,7 @@ void CppQmlTypes::load(const T &fakeMetaObjects, const QString &overridePackage)
                 QTC_ASSERT(exp.type == fmo->className(), continue);
                 CppComponentValue *cppValue = new CppComponentValue(
                             fmo, fmo->className(), cppPackage, ComponentVersion(), ComponentVersion(),
-                            ComponentVersion::MaxVersion, m_valueOwner);
+                            ComponentVersion::MaxVersion, m_valueOwner, originId);
                 m_objectsByQualifiedName[qualifiedName(cppPackage, fmo->className(), ComponentVersion())] = cppValue;
                 newCppTypes += cppValue;
             }
@@ -1407,8 +1423,8 @@ void CppQmlTypes::load(const T &fakeMetaObjects, const QString &overridePackage)
     }
 }
 // explicitly instantiate load for list and hash
-template void CppQmlTypes::load< QList<FakeMetaObject::ConstPtr> >(const QList<FakeMetaObject::ConstPtr> &, const QString &);
-template void CppQmlTypes::load< QHash<QString, FakeMetaObject::ConstPtr> >(const QHash<QString, FakeMetaObject::ConstPtr> &, const QString &);
+template void CppQmlTypes::load< QList<FakeMetaObject::ConstPtr> >(const QString &, const QList<FakeMetaObject::ConstPtr> &, const QString &);
+template void CppQmlTypes::load< QHash<QString, FakeMetaObject::ConstPtr> >(const QString &, const QHash<QString, FakeMetaObject::ConstPtr> &, const QString &);
 
 QList<const CppComponentValue *> CppQmlTypes::createObjectsForImport(const QString &package, ComponentVersion version)
 {
@@ -1417,7 +1433,8 @@ QList<const CppComponentValue *> CppQmlTypes::createObjectsForImport(const QStri
     QList<const CppComponentValue *> newObjects;
 
     // make new exported objects
-    foreach (const FakeMetaObject::ConstPtr &fmo, m_fakeMetaObjectsByPackage.value(package)) {
+    foreach (const FakeMetaObjectWithOrigin &fmoo, m_fakeMetaObjectsByPackage.value(package)) {
+        const FakeMetaObject::ConstPtr &fmo = fmoo.fakeMetaObject;
         // find the highest-version export for each alias
         QHash<QString, FakeMetaObject::Export> bestExports;
         foreach (const FakeMetaObject::Export &exp, fmo->exports()) {
@@ -1449,7 +1466,8 @@ QList<const CppComponentValue *> CppQmlTypes::createObjectsForImport(const QStri
 
             CppComponentValue *newComponent = new CppComponentValue(
                         fmo, name, package, bestExport.version, version,
-                        bestExport.metaObjectRevision, m_valueOwner);
+                        bestExport.metaObjectRevision, m_valueOwner,
+                        fmoo.originId);
 
             // use package.cppname importversion as key
             m_objectsByQualifiedName.insert(key, newComponent);
@@ -1463,6 +1481,8 @@ QList<const CppComponentValue *> CppQmlTypes::createObjectsForImport(const QStri
     }
 
     // set their prototypes, creating them if necessary
+    // this ensures that the prototypes of C++ objects are resolved correctly and with the correct
+    // revision, and cannot be hidden by other objects.
     foreach (const CppComponentValue *cobject, newObjects) {
         CppComponentValue *object = const_cast<CppComponentValue *>(cobject);
         while (!object->prototype()) {
@@ -1485,8 +1505,10 @@ QList<const CppComponentValue *> CppQmlTypes::createObjectsForImport(const QStri
 
             // make a new object
             CppComponentValue *proto = new CppComponentValue(
-                        protoFmo, protoCppName, object->moduleName(), ComponentVersion(),
-                        object->importVersion(), ComponentVersion::MaxVersion, m_valueOwner);
+                        protoFmo, protoCppName, object->moduleName(),
+                        ComponentVersion(),
+                        object->importVersion(), ComponentVersion::MaxVersion, m_valueOwner,
+                        cppProto->originId());
             m_objectsByQualifiedName.insert(key, proto);
             object->setPrototype(proto);
 
@@ -1786,7 +1808,8 @@ ASTObjectValue::ASTObjectValue(UiQualifiedId *typeName,
                                UiObjectInitializer *initializer,
                                const Document *doc,
                                ValueOwner *valueOwner)
-    : ObjectValue(valueOwner), m_typeName(typeName), m_initializer(initializer), m_doc(doc), m_defaultPropertyRef(0)
+    : ObjectValue(valueOwner, doc->importId()),
+      m_typeName(typeName), m_initializer(initializer), m_doc(doc), m_defaultPropertyRef(0)
 {
     if (m_initializer) {
         for (UiObjectMemberList *it = m_initializer->members; it; it = it->next) {
diff --git a/src/libs/qmljs/qmljsinterpreter.h b/src/libs/qmljs/qmljsinterpreter.h
index 6bb48b8a6f5..64e89fee151 100644
--- a/src/libs/qmljs/qmljsinterpreter.h
+++ b/src/libs/qmljs/qmljsinterpreter.h
@@ -443,7 +443,7 @@ public:
 class QMLJS_EXPORT ObjectValue: public Value
 {
 public:
-    ObjectValue(ValueOwner *valueOwner);
+    ObjectValue(ValueOwner *valueOwner, const QString &originId = QString());
     ~ObjectValue();
 
     ValueOwner *valueOwner() const;
@@ -475,6 +475,9 @@ public:
     // Value interface
     const ObjectValue *asObjectValue() const QTC_OVERRIDE;
     void accept(ValueVisitor *visitor) const QTC_OVERRIDE;
+    QString originId() const
+    { return m_originId; }
+
 
 private:
     bool checkPrototype(const ObjectValue *prototype, QSet<const ObjectValue *> *processed) const;
@@ -483,6 +486,7 @@ private:
     ValueOwner *m_valueOwner;
     QHash<QString, const Value *> m_members;
     QString m_className;
+    QString m_originId;
 
 protected:
     const Value *_prototype;
@@ -542,7 +546,7 @@ public:
     CppComponentValue(LanguageUtils::FakeMetaObject::ConstPtr metaObject, const QString &className,
                    const QString &moduleName, const LanguageUtils::ComponentVersion &componentVersion,
                    const LanguageUtils::ComponentVersion &importVersion, int metaObjectRevision,
-                   ValueOwner *valueOwner);
+                   ValueOwner *valueOwner, const QString &originId);
     ~CppComponentValue();
 
     const CppComponentValue *asCppComponentValue() const QTC_OVERRIDE;
@@ -673,6 +677,18 @@ public:
         QList<ModuleApiInfo> *newModuleApis, QString *errorMessage, QString *warningMessage, const QString &fileName);
 };
 
+class QMLJS_EXPORT FakeMetaObjectWithOrigin
+{
+public:
+    LanguageUtils::FakeMetaObject::ConstPtr fakeMetaObject;
+    QString originId;
+    FakeMetaObjectWithOrigin(LanguageUtils::FakeMetaObject::ConstPtr fakeMetaObject,
+                             const QString &originId);
+    bool operator ==(const FakeMetaObjectWithOrigin &o) const;
+};
+
+QMLJS_EXPORT uint qHash(const FakeMetaObjectWithOrigin &fmoo, int seed = 0);
+
 class QMLJS_EXPORT CppQmlTypes
 {
 public:
@@ -684,7 +700,7 @@ public:
     static const QLatin1String cppPackage;
 
     template <typename T>
-    void load(const T &fakeMetaObjects, const QString &overridePackage = QString());
+    void load(const QString &originId, const T &fakeMetaObjects, const QString &overridePackage = QString());
 
     QList<const CppComponentValue *> createObjectsForImport(const QString &package, LanguageUtils::ComponentVersion version);
     bool hasModule(const QString &module) const;
@@ -703,7 +719,7 @@ public:
 private:
     // "Package.CppName ImportVersion" ->  CppComponentValue
     QHash<QString, const CppComponentValue *> m_objectsByQualifiedName;
-    QHash<QString, QSet<LanguageUtils::FakeMetaObject::ConstPtr> > m_fakeMetaObjectsByPackage;
+    QHash<QString, QSet<FakeMetaObjectWithOrigin> > m_fakeMetaObjectsByPackage;
     const ObjectValue *m_cppContextProperties;
     ValueOwner *m_valueOwner;
 };
diff --git a/src/libs/qmljs/qmljslink.cpp b/src/libs/qmljs/qmljslink.cpp
index 969bc8c939d..e0006e4b837 100644
--- a/src/libs/qmljs/qmljslink.cpp
+++ b/src/libs/qmljs/qmljslink.cpp
@@ -147,10 +147,14 @@ Link::Link(const Snapshot &snapshot, const ViewerContext &vContext, const Librar
     ModelManagerInterface *modelManager = ModelManagerInterface::instance();
     if (modelManager) {
         ModelManagerInterface::CppDataHash cppDataHash = modelManager->cppData();
-
-        // populate engine with types from C++
-        foreach (const ModelManagerInterface::CppData &cppData, cppDataHash) {
-            d->valueOwner->cppQmlTypes().load(cppData.exportedTypes);
+        {
+            // populate engine with types from C++
+            ModelManagerInterface::CppDataHashIterator cppDataHashIterator(cppDataHash);
+            while (cppDataHashIterator.hasNext()) {
+                cppDataHashIterator.next();
+                d->valueOwner->cppQmlTypes().load(cppDataHashIterator.key(),
+                                                  cppDataHashIterator.value().exportedTypes);
+            }
         }
 
         // build an object with the context properties from C++
@@ -197,13 +201,13 @@ Context::ImportsPerDocument LinkPrivate::linkImports()
     // load builtin objects
     if (builtins.pluginTypeInfoStatus() == LibraryInfo::DumpDone
             || builtins.pluginTypeInfoStatus() == LibraryInfo::TypeInfoFileDone) {
-        valueOwner->cppQmlTypes().load(builtins.metaObjects());
+        valueOwner->cppQmlTypes().load(QLatin1String("<builtins>"), builtins.metaObjects());
     } else {
-        valueOwner->cppQmlTypes().load(CppQmlTypesLoader::defaultQtObjects);
+        valueOwner->cppQmlTypes().load(QLatin1String("<defaults>"), CppQmlTypesLoader::defaultQtObjects);
     }
 
     // load library objects shipped with Creator
-    valueOwner->cppQmlTypes().load(CppQmlTypesLoader::defaultLibraryObjects);
+    valueOwner->cppQmlTypes().load(QLatin1String("<defaultQt4>"), CppQmlTypesLoader::defaultLibraryObjects);
 
     if (document) {
         // do it on document first, to make sure import errors are shown
@@ -483,7 +487,7 @@ bool LinkPrivate::importLibrary(Document::Ptr doc,
             }
         } else {
             const QString packageName = importInfo.name();
-            valueOwner->cppQmlTypes().load(libraryInfo.metaObjects(), packageName);
+            valueOwner->cppQmlTypes().load(libraryPath, libraryInfo.metaObjects(), packageName);
             foreach (const CppComponentValue *object, valueOwner->cppQmlTypes().createObjectsForImport(packageName, version)) {
                 import->object->setMember(object->className(), object);
             }
@@ -578,7 +582,7 @@ void LinkPrivate::loadImplicitDefaultImports(Imports *imports)
         if (!import.object) {
             import.valid = true;
             import.info = info;
-            import.object = new ObjectValue(valueOwner);
+            import.object = new ObjectValue(valueOwner, QLatin1String("<defaults>"));
             foreach (const CppComponentValue *object,
                      valueOwner->cppQmlTypes().createObjectsForImport(
                          defaultPackage, maxVersion)) {
diff --git a/src/libs/qmljs/qmljsmodelmanagerinterface.h b/src/libs/qmljs/qmljsmodelmanagerinterface.h
index 089b70e68e6..ad2a14b81b4 100644
--- a/src/libs/qmljs/qmljsmodelmanagerinterface.h
+++ b/src/libs/qmljs/qmljsmodelmanagerinterface.h
@@ -142,6 +142,7 @@ public:
     };
 
     typedef QHash<QString, CppData> CppDataHash;
+    typedef QHashIterator<QString, CppData> CppDataHashIterator;
 
 public:
     ModelManagerInterface(QObject *parent = 0);