diff --git a/lib/hkStubs/Havok/Physics2012/Collide/Shape/Query/hkpRayShapeCollectionFilter.h b/lib/hkStubs/Havok/Physics2012/Collide/Shape/Query/hkpRayShapeCollectionFilter.h
index 8c1ee83c..01180cac 100644
--- a/lib/hkStubs/Havok/Physics2012/Collide/Shape/Query/hkpRayShapeCollectionFilter.h
+++ b/lib/hkStubs/Havok/Physics2012/Collide/Shape/Query/hkpRayShapeCollectionFilter.h
@@ -3,8 +3,8 @@
 #include <Havok/Common/Base/Types/hkBaseTypes.h>
 #include <Havok/Physics2012/Collide/Shape/hkpShapeBase.h>
 
-class hkpShapeRayCastInput;
 class hkpShapeContainer;
+struct hkpShapeRayCastInput;
 
 class hkpRayShapeCollectionFilter {
 public:
diff --git a/lib/hkStubs/Havok/Physics2012/Collide/Shape/hkpShapeBase.h b/lib/hkStubs/Havok/Physics2012/Collide/Shape/hkpShapeBase.h
index ca3be434..187db8cc 100644
--- a/lib/hkStubs/Havok/Physics2012/Collide/Shape/hkpShapeBase.h
+++ b/lib/hkStubs/Havok/Physics2012/Collide/Shape/hkpShapeBase.h
@@ -11,10 +11,10 @@ class hkSphere;
 class hkcdVertex;
 class hkpCdBody;
 class hkpRayHitCollector;
-class hkpShapeRayBundleCastInput;
-class hkpShapeRayBundleCastOutput;
-class hkpShapeRayCastInput;
-class hkpShapeRayCastOutput;
+struct hkpShapeRayBundleCastInput;
+struct hkpShapeRayBundleCastOutput;
+struct hkpShapeRayCastInput;
+struct hkpShapeRayCastOutput;
 
 /// Base interface for all physics shapes.
 class hkpShapeBase : public hkcdShape {