diff --git a/src/ox/std/types.hpp b/src/ox/std/types.hpp
index 1c16af4ec..d0a824843 100644
--- a/src/ox/std/types.hpp
+++ b/src/ox/std/types.hpp
@@ -14,7 +14,11 @@ typedef unsigned short     uint16_t;
 typedef int                int32_t;
 typedef unsigned int       uint32_t;
 typedef unsigned           uint_t;
+#ifdef _MSC_VER
+typedef long long          int64_t;
+#else
 typedef long               int64_t;
+#endif
 typedef unsigned long long uint64_t;
 
 namespace ox {