--- 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;

 }