diff --git a/src/qml/qml/qqmlengine.cpp b/src/qml/qml/qqmlengine.cpp
index 2a27c543fd..a92162aa74 100644
--- a/src/qml/qml/qqmlengine.cpp
+++ b/src/qml/qml/qqmlengine.cpp
@@ -555,7 +555,6 @@ QQmlEnginePrivate::QQmlEnginePrivate(QQmlEngine *e)
   scarceResourcesRefCount(0), typeLoader(e), importDatabase(e), uniqueId(1),
   incubatorCount(0), incubationController(0), mutex(QMutex::Recursive)
 {
-    useNewCompiler = true;
 }
 
 QQmlEnginePrivate::~QQmlEnginePrivate()
diff --git a/src/qml/qml/qqmlengine_p.h b/src/qml/qml/qqmlengine_p.h
index f19bfc84b3..c9e429c7bb 100644
--- a/src/qml/qml/qqmlengine_p.h
+++ b/src/qml/qml/qqmlengine_p.h
@@ -138,7 +138,6 @@ public:
 
     QQmlContext *rootContext;
     bool isDebugging;
-    bool useNewCompiler;
     QQmlProfiler *profiler;
     void enableProfiler();