diff --git a/XenosRecomp/shader_common.h b/XenosRecomp/shader_common.h
index 96b9102..c714176 100644
--- a/XenosRecomp/shader_common.h
+++ b/XenosRecomp/shader_common.h
@@ -180,7 +180,7 @@ float rcp(T a)
 template<typename T>
 float4x4 mul(T a, T b)
 {
-    return a * b;
+    return b * a;
 }
 #endif