diff --git a/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp b/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
index bf485f6148d..88214b90680 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
+++ b/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
@@ -79,7 +79,9 @@ AutotoolsProject::AutotoolsProject(AutotoolsManager *manager, const QString &fil
     m_makefileParserThread(0)
 {
     setProjectContext(Core::Context(Constants::PROJECT_CONTEXT));
-    setProjectLanguages(Core::Context(ProjectExplorer::Constants::LANG_CXX));
+    Core::Context pl(ProjectExplorer::Constants::LANG_CXX);
+    pl.add(ProjectExplorer::Constants::LANG_QMLJS);
+    setProjectLanguages(pl);
 
     const QFileInfo fileInfo(m_fileName);
     m_projectName = fileInfo.absoluteDir().dirName();
diff --git a/src/plugins/cmakeprojectmanager/cmakeproject.cpp b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
index b5ef429b048..c4fb4ff796a 100644
--- a/src/plugins/cmakeprojectmanager/cmakeproject.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
@@ -109,7 +109,10 @@ CMakeProject::CMakeProject(CMakeManager *manager, const QString &fileName)
       m_lastEditor(0)
 {
     setProjectContext(Core::Context(CMakeProjectManager::Constants::PROJECTCONTEXT));
-    setProjectLanguages(Core::Context(ProjectExplorer::Constants::LANG_CXX));
+    Core::Context pl(ProjectExplorer::Constants::LANG_CXX);
+    pl.add(ProjectExplorer::Constants::LANG_QMLJS);
+    setProjectLanguages(pl);
+
 
     m_file = new CMakeFile(this, fileName);
 
diff --git a/src/plugins/genericprojectmanager/genericproject.cpp b/src/plugins/genericprojectmanager/genericproject.cpp
index e9f6a8a2bef..b53354b18ab 100644
--- a/src/plugins/genericprojectmanager/genericproject.cpp
+++ b/src/plugins/genericprojectmanager/genericproject.cpp
@@ -70,7 +70,10 @@ GenericProject::GenericProject(Manager *manager, const QString &fileName)
       m_fileName(fileName)
 {
     setProjectContext(Context(GenericProjectManager::Constants::PROJECTCONTEXT));
-    setProjectLanguages(Context(ProjectExplorer::Constants::LANG_CXX));
+    Core::Context pl(ProjectExplorer::Constants::LANG_CXX);
+    pl.add(ProjectExplorer::Constants::LANG_QMLJS);
+    setProjectLanguages(pl);
+
 
     QFileInfo fileInfo(m_fileName);
     QDir dir = fileInfo.dir();
diff --git a/src/plugins/qbsprojectmanager/qbsproject.cpp b/src/plugins/qbsprojectmanager/qbsproject.cpp
index 340e1e2c4f9..a35b3f1fb70 100644
--- a/src/plugins/qbsprojectmanager/qbsproject.cpp
+++ b/src/plugins/qbsprojectmanager/qbsproject.cpp
@@ -103,7 +103,10 @@ QbsProject::QbsProject(QbsManager *manager, const QString &fileName) :
     m_currentBc(0)
 {
     setProjectContext(Core::Context(Constants::PROJECT_ID));
-    setProjectLanguages(Core::Context(ProjectExplorer::Constants::LANG_CXX));
+    Core::Context pl(ProjectExplorer::Constants::LANG_CXX);
+    pl.add(ProjectExplorer::Constants::LANG_QMLJS);
+    setProjectLanguages(pl);
+
 
     connect(this, SIGNAL(activeTargetChanged(ProjectExplorer::Target*)),
             this, SLOT(changeActiveTarget(ProjectExplorer::Target*)));
diff --git a/src/plugins/qmlprojectmanager/qmlproject.cpp b/src/plugins/qmlprojectmanager/qmlproject.cpp
index 5abbb8db12b..053b298ed60 100644
--- a/src/plugins/qmlprojectmanager/qmlproject.cpp
+++ b/src/plugins/qmlprojectmanager/qmlproject.cpp
@@ -117,7 +117,7 @@ QmlProject::QmlProject(Internal::Manager *manager, const QString &fileName)
       m_modelManager(QmlJS::ModelManagerInterface::instance())
 {
     setProjectContext(Core::Context(QmlProjectManager::Constants::PROJECTCONTEXT));
-    setProjectLanguages(Core::Context(QmlProjectManager::Constants::LANG_QML));
+    setProjectLanguages(Core::Context(ProjectExplorer::Constants::LANG_QMLJS));
 
     QFileInfo fileInfo(m_fileName);
     m_projectName = fileInfo.completeBaseName();
diff --git a/src/plugins/qmlprojectmanager/qmlprojectconstants.h b/src/plugins/qmlprojectmanager/qmlprojectconstants.h
index 387b6f28d6c..b3b98ab6a47 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectconstants.h
+++ b/src/plugins/qmlprojectmanager/qmlprojectconstants.h
@@ -36,7 +36,6 @@ namespace QmlProjectManager {
 namespace Constants {
 
 const char *const PROJECTCONTEXT     = "QmlProject.ProjectContext";
-const char *const LANG_QML           = "QML";
 const char *const QMLPROJECT_MIMETYPE        = QmlJSTools::Constants::QMLPROJECT_MIMETYPE;
 
 } // namespace Constants
diff --git a/src/plugins/qt4projectmanager/qt4project.cpp b/src/plugins/qt4projectmanager/qt4project.cpp
index aa1e6487b81..95b3564e146 100644
--- a/src/plugins/qt4projectmanager/qt4project.cpp
+++ b/src/plugins/qt4projectmanager/qt4project.cpp
@@ -328,7 +328,9 @@ Qt4Project::Qt4Project(Qt4Manager *manager, const QString& fileName) :
     m_activeTarget(0)
 {
     setProjectContext(Core::Context(Qt4ProjectManager::Constants::PROJECT_ID));
-    setProjectLanguages(Core::Context(ProjectExplorer::Constants::LANG_CXX));
+    Core::Context pl(ProjectExplorer::Constants::LANG_CXX);
+    pl.add(ProjectExplorer::Constants::LANG_QMLJS);
+    setProjectLanguages(pl);
 
     m_asyncUpdateTimer.setSingleShot(true);
     m_asyncUpdateTimer.setInterval(3000);
@@ -609,15 +611,6 @@ void Qt4Project::updateQmlJSCodeModel()
         }
     }
 
-    // If the project directory has a pro/pri file that includes a qml or quick or declarative
-    // library then chances of the project being a QML project is quite high.
-    // This assumption fails when there are no QDeclarativeEngine/QDeclarativeView (QtQuick 1)
-    // or QQmlEngine/QQuickView (QtQuick 2) instances.
-    Core::Context pl(ProjectExplorer::Constants::LANG_CXX);
-    if (hasQmlLib)
-        pl.add(ProjectExplorer::Constants::LANG_QMLJS);
-    setProjectLanguages(pl);
-
     projectInfo.importPaths.removeDuplicates();
 
     modelManager->updateProjectInfo(projectInfo);