diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp
index ab68a01e14..baed36b001 100644
--- a/src/common/strconv.cpp
+++ b/src/common/strconv.cpp
@@ -48,6 +48,10 @@
   #include <langinfo.h>
 #endif
 
+#ifdef __WXMSW__
+  #include <windows.h>
+#endif
+
 #include "wx/debug.h"
 #include "wx/strconv.h"