diff --git a/__init__.py b/__init__.py
index 40fd5200af..780df89f1f 100644
--- a/__init__.py
+++ b/__init__.py
@@ -8,6 +8,5 @@ def getMetaData():
 
 def register(app):
     Preferences.addPreference("BackendLocation","../PinkUnicornEngine/CuraEngine")
-    engine = CuraEngineBackend.CuraEngineBackend()
-    app.setBackend(engine)
-    #engine.addCommand(TransferMeshCommand())
+    return CuraEngineBackend.CuraEngineBackend()
+