diff --git a/engine/eiface.h b/engine/eiface.h
index 68ff89a..a25630f 100644
--- a/engine/eiface.h
+++ b/engine/eiface.h
@@ -71,7 +71,14 @@ typedef struct
 	union
 	{
 		int		iHitgroup;// 0 == generic, non zero is specific body part
-		struct mstudiomat_s	*pMat;	// env_static hitting surface
+///		struct mstudiomat_s	*pMat;	// env_static hitting surface
+	struct matstub_s {
+	operator mstudiomat_s *(){
+		return (mstudiomat_s *)NULL;
+		}
+		operator bool(){return false;};
+		mstudiomat_s * operator ->(){return (mstudiomat_s *)NULL;}
+	} pMat;
 	};
 } TraceResult;