diff --git a/lib/hkStubs/Havok/Physics2012/Collide/Filter/hkpConvexListFilter.h b/lib/hkStubs/Havok/Physics2012/Collide/Filter/hkpConvexListFilter.h
index 059b7128..9a5a4c0a 100644
--- a/lib/hkStubs/Havok/Physics2012/Collide/Filter/hkpConvexListFilter.h
+++ b/lib/hkStubs/Havok/Physics2012/Collide/Filter/hkpConvexListFilter.h
@@ -4,7 +4,7 @@
 #include <Havok/Common/Base/Object/hkReferencedObject.h>
 
 class hkpCdBody;
-class hkpCollisionInput;
+struct hkpCollisionInput;
 
 class hkpConvexListFilter : public hkReferencedObject {
 public: