diff --git a/src/main/java/net/minecraftforge/client/model/animation/ModelBlockAnimation.java b/src/main/java/net/minecraftforge/client/model/animation/ModelBlockAnimation.java
index 2ea14fbd46..036fdca32e 100644
--- a/src/main/java/net/minecraftforge/client/model/animation/ModelBlockAnimation.java
+++ b/src/main/java/net/minecraftforge/client/model/animation/ModelBlockAnimation.java
@@ -80,7 +80,7 @@ public class ModelBlockAnimation
         this.clips = clips;
     }
 
-    public ImmutableMap<String, MBClip> getClips()
+    public ImmutableMap<String, ? extends IClip> getClips()
     {
         return clips;
     }