1 files changed, 3 insertions, 0 deletions
diff --git a/src/simpleanimation.h b/src/simpleanimation.h
index 131cd4c07..e30455a04 100644
--- a/src/simpleanimation.h
+++ b/src/simpleanimation.h
@@ -30,6 +30,7 @@
 class Animation;
 class Graphics;
 class Image;
+class ImageSet;
 
 struct Frame;
 
@@ -91,6 +92,8 @@ class SimpleAnimation final
 
         /**  Tell whether the animation is ready */
         bool mInitialized;
+
+        ImageSet *mImageSet;
 };
 
 #endif