diff --git a/include/wx/wxchar.h b/include/wx/wxchar.h
index 2dd2203505..5db032027d 100644
--- a/include/wx/wxchar.h
+++ b/include/wx/wxchar.h
@@ -216,8 +216,12 @@ inline WORD __wxMSW_ctype(wxChar ch)
 #endif
 
 #if wxUSE_WCHAR_T
+#ifdef HAVE_WCSTR_H
+#include <wcstr.h>
+#else
 #include <wchar.h>
 #endif
+#endif
 
 // check whether we are doing Unicode
 #if wxUSE_UNICODE