diff --git a/libretroshare/src/util/rsdir.cc b/libretroshare/src/util/rsdir.cc
index f318865ed..4334f657f 100644
--- a/libretroshare/src/util/rsdir.cc
+++ b/libretroshare/src/util/rsdir.cc
@@ -391,7 +391,7 @@ bool RsDirUtil::renameFile(const std::string& from, const std::string& to)
 	int			loops = 0;
 
 #ifdef WIN32
-#ifdef MINGW || __CYGWIN__
+#if defined(MINGW) || defined(__CYGWIN__)
 	std::string f(from),t(to) ;
 #else
 	std::wstring f,t ;