diff --git a/src/libs/qmljs/qmljsinterpreter.cpp b/src/libs/qmljs/qmljsinterpreter.cpp
index 5f9a02573b9..967e6788aae 100644
--- a/src/libs/qmljs/qmljsinterpreter.cpp
+++ b/src/libs/qmljs/qmljsinterpreter.cpp
@@ -2076,6 +2076,11 @@ UiQualifiedId *QmlPrototypeReference::qmlTypeName() const
     return m_qmlTypeName;
 }
 
+const Document *QmlPrototypeReference::document() const
+{
+    return m_doc;
+}
+
 const Value *QmlPrototypeReference::value(ReferenceContext *referenceContext) const
 {
     return referenceContext->context()->lookupType(m_doc, m_qmlTypeName);
diff --git a/src/libs/qmljs/qmljsinterpreter.h b/src/libs/qmljs/qmljsinterpreter.h
index cb44f9ed6b7..8bcb9f07abc 100644
--- a/src/libs/qmljs/qmljsinterpreter.h
+++ b/src/libs/qmljs/qmljsinterpreter.h
@@ -872,6 +872,7 @@ public:
     const QmlPrototypeReference *asQmlPrototypeReference() const Q_DECL_OVERRIDE;
 
     AST::UiQualifiedId *qmlTypeName() const;
+    const Document *document() const;
 
 private:
     const Value *value(ReferenceContext *referenceContext) const Q_DECL_OVERRIDE;