--- a/src/annotations/core/imageEffects/ImageEffectFactory.cpp
+++ b/src/annotations/core/imageEffects/ImageEffectFactory.cpp
@@ -31,4 +31,5 @@ QGraphicsEffect *kImageAnnotator::ImageE
 		case ImageEffects::Grayscale:
 			return new GrayscaleImageEffect;
 	}
+	return new NoImageEffect;
 }