diff --git a/physx/source/geomutils/src/gjk/GuGJKType.h b/physx/source/geomutils/src/gjk/GuGJKType.h
index a0099e2f..b824ec7a 100644
--- a/physx/source/geomutils/src/gjk/GuGJKType.h
+++ b/physx/source/geomutils/src/gjk/GuGJKType.h
@@ -151,7 +151,7 @@ namespace Gu
 
 		virtual Ps::aos::Vec3V getCenter() const { return mAToB.transform(getConvex<Convex>().getCenter()); }
 
-		PX_FORCE_INLINE Ps::aos::PsMatTransformV& getRelativeTransform(){ return mAToB; }
+		PX_FORCE_INLINE const Ps::aos::PsMatTransformV& getRelativeTransform(){ return mAToB; }
 
 		//ML: we can't force inline function, otherwise win modern will throw compiler error
 		PX_INLINE RelativeConvex<typename ConvexGeom<Convex>::Type > getGjkConvex() const