1 files changed, 4 insertions, 0 deletions
diff --git a/src/resources/spritedef.h b/src/resources/spritedef.h
index bc4f13a13..09e5171e4 100644
--- a/src/resources/spritedef.h
+++ b/src/resources/spritedef.h
@@ -49,6 +49,8 @@ struct SpriteReference final
     {
     }
 
+    A_DELETE_COPY(SpriteReference);
+
     std::string sprite;
     int variant;
 };
@@ -110,6 +112,8 @@ enum SpriteDirection
 class SpriteDef final : public Resource
 {
     public:
+        A_DELETE_COPY(SpriteDef);
+
         /**
          * Loads a sprite definition file.
          */