diff --git a/src/CalcManager/Ratpack/conv.cpp b/src/CalcManager/Ratpack/conv.cpp
index c7f474cf..cd7af0e2 100644
--- a/src/CalcManager/Ratpack/conv.cpp
+++ b/src/CalcManager/Ratpack/conv.cpp
@@ -49,7 +49,7 @@ wchar_t g_decimalSeparator = L'.';
 #define Calc_UInt32x32To64(a, b) ((uint64_t)((uint32_t)(a)) * (uint64_t)((uint32_t)(b)))
 #endif
 
-#elif defined(_M_IX86) || defined(__i386__) || defined(_M_ARM) || defined(__EMSCRIPTEN__) || defined(__APPLE__)
+#elif defined(_M_IX86) || defined(__i386__) || defined(_M_ARM) || defined(__EMSCRIPTEN__)
 
 #ifndef Calc_UInt32x32To64
 #define Calc_UInt32x32To64(a, b) (uint64_t)((uint64_t)(uint32_t)(a) * (uint32_t)(b))