diff --git a/src/windows_port.cc b/src/windows_port.cc
index 1f40458..9ccb630 100644
--- a/src/windows_port.cc
+++ b/src/windows_port.cc
@@ -59,6 +59,8 @@ int safe_vsnprintf(char *str, size_t size, const char *format, va_list ap) {
 #  pragma warning(pop)
 #endif
 
+#if _MSC_VER < 1900  // msvs 2015 finally includes snprintf
+
 int snprintf(char *str, size_t size, const char *format, ...) {
   int r;
   va_list ap;
@@ -68,4 +70,6 @@ int snprintf(char *str, size_t size, const char *format, ...) {
   return r;
 }
 
+#endif
+
 #endif  /* #if !defined(__MINGW32__) && !defined(__MINGW64__) */