diff --git a/rtgui/multilangmgr.cc b/rtgui/multilangmgr.cc
old mode 100644
new mode 100755
index 870eeae7f..f7b7c47af
--- a/rtgui/multilangmgr.cc
+++ b/rtgui/multilangmgr.cc
@@ -130,7 +130,7 @@ Glib::ustring MultiLangMgr::getOSUserLanguage() {
         }
 #endif
 #elif defined(__linux__) || defined(__APPLE__)
-    langName = TranslateRFC2Language(std::setlocale(LC_CTYPE,""));
+    langName = TranslateRFC2Language(setlocale(LC_CTYPE,""));
 #endif
     }