diff --git a/include/bx/inline/simd128_langext.inl b/include/bx/inline/simd128_langext.inl
index eea2e8a..d09c5d8 100644
--- a/include/bx/inline/simd128_langext.inl
+++ b/include/bx/inline/simd128_langext.inl
@@ -9,7 +9,7 @@
 
 namespace bx
 {
-	BX_CONST_FUNC float sqrtRef(float);
+	BX_CONSTEXPR_FUNC float sqrtRef(float);
 
 #define ELEMx 0
 #define ELEMy 1