1 files changed, 3 insertions, 2 deletions
diff --git a/src/qml/jsruntime/qv4functionobject.cpp b/src/qml/jsruntime/qv4functionobject.cpp
index f4037991b1..04fbe2d1e3 100644
--- a/src/qml/jsruntime/qv4functionobject.cpp
+++ b/src/qml/jsruntime/qv4functionobject.cpp
@@ -507,7 +507,7 @@ ReturnedValue ScriptFunction::virtualCall(const FunctionObject *fo, const Value
     return result;
 }
 
-void Heap::ScriptFunction::init(QV4::ExecutionContext *scope, Function *function, QV4::String *n)
+void Heap::ScriptFunction::init(QV4::ExecutionContext *scope, Function *function, QV4::String *n, bool makeConstructor)
 {
     FunctionObject::init();
     this->scope.set(scope->engine(), scope->d());
@@ -521,7 +521,8 @@ void Heap::ScriptFunction::init(QV4::ExecutionContext *scope, Function *function
     ScopedString name(s, n ? n->d() : function->name());
     if (name)
         f->setName(name);
-    f->createDefaultPrototypeProperty(Heap::FunctionObject::Index_ProtoConstructor);
+    if (makeConstructor)
+        f->createDefaultPrototypeProperty(Heap::FunctionObject::Index_ProtoConstructor);
 
     Q_ASSERT(internalClass && internalClass->find(s.engine->id_length()->propertyKey()) == Index_Length);
     setProperty(s.engine, Index_Length, Primitive::fromInt32(int(function->compiledFunction->length)));