diff --git a/include/bx/inline/simd128_ref.inl b/include/bx/inline/simd128_ref.inl
index 28c525a..c1eea3b 100644
--- a/include/bx/inline/simd128_ref.inl
+++ b/include/bx/inline/simd128_ref.inl
@@ -136,10 +136,10 @@ BX_SIMD128_IMPLEMENT_TEST(xyzw , 0xf)
 	BX_SIMD_FORCE_INLINE simd128_ref_t simd_shuf_AxBy(simd128_ref_t _a, simd128_ref_t _b)
 	{
 		simd128_ref_t result;
-		result.uxyzw[0] = _a.uxyzw[1];
-		result.uxyzw[1] = _b.uxyzw[1];
-		result.uxyzw[2] = _a.uxyzw[0];
-		result.uxyzw[3] = _b.uxyzw[0];
+		result.uxyzw[0] = _b.uxyzw[0];
+		result.uxyzw[1] = _a.uxyzw[0];
+		result.uxyzw[2] = _b.uxyzw[1];
+		result.uxyzw[3] = _a.uxyzw[1];
 		return result;
 	}