diff --git a/src/common/xlocale.cpp b/src/common/xlocale.cpp
index f89a755766..24dca049ca 100644
--- a/src/common/xlocale.cpp
+++ b/src/common/xlocale.cpp
@@ -32,6 +32,7 @@
 #include "wx/xlocale.h"
 
 #include <errno.h>
+#include <locale.h>
 
 // ----------------------------------------------------------------------------
 // module globals