1 files changed, 3 insertions, 1 deletions
diff --git a/src/qml/jsruntime/qv4functionobject.cpp b/src/qml/jsruntime/qv4functionobject.cpp
index 172b29e88b..c65882ed7a 100644
--- a/src/qml/jsruntime/qv4functionobject.cpp
+++ b/src/qml/jsruntime/qv4functionobject.cpp
@@ -208,8 +208,10 @@ Heap::FunctionObject *FunctionObject::createQmlFunction(QQmlContextData *qmlCont
     QV4::Scoped<QmlContext> wrapperContext(valueScope, QmlContext::create(global, qmlContext, scopeObject));
 
     if (!signalParameters.isEmpty()) {
-        if (error)
+        if (error) {
             QQmlPropertyCache::signalParameterStringForJS(engine, signalParameters, error);
+            return 0;
+        }
         runtimeFunction->updateInternalClass(engine, signalParameters);
     }