diff --git a/app/node/distort/crop/cropdistortnode.h b/app/node/distort/crop/cropdistortnode.h
index 9afd0a7f1..5dc2de3d2 100644
--- a/app/node/distort/crop/cropdistortnode.h
+++ b/app/node/distort/crop/cropdistortnode.h
@@ -30,6 +30,7 @@ namespace olive {
 
 class CropDistortNode : public Node
 {
+  Q_OBJECT
 public:
   CropDistortNode();