diff --git a/engines/grim/resource.h b/engines/grim/resource.h
index d11b374963f..6f8039a084a 100644
--- a/engines/grim/resource.h
+++ b/engines/grim/resource.h
@@ -42,7 +42,7 @@ class LipSync;
 class TrackedObject;
 class SaveGame;
 class Skeleton;
-class Sprite;
+struct Sprite;
 class Lab;
 
 typedef ObjectPtr<Material> MaterialPtr;