diff --git a/Common/OS.cpp b/Common/OS.cpp
index 049a54c920c5ee33c57ee57c68d5e1898e37c8e4..853e9f42586dda51ffd9efbe30b82a2a45655d0d 100644
--- a/Common/OS.cpp
+++ b/Common/OS.cpp
@@ -159,7 +159,7 @@ int StatFile(const std::string &fileName)
   // could get file modification time from buf
 #else
   struct _stat buf;
-  int ret _stat(fileName.c_str(), &buf);
+  int ret = _stat(fileName.c_str(), &buf);
 #endif
   return ret;
 }