diff --git a/src/common/intl.cpp b/src/common/intl.cpp
index 8dcb64784c..b872663c75 100644
--- a/src/common/intl.cpp
+++ b/src/common/intl.cpp
@@ -1384,7 +1384,7 @@ wxString wxLocale::GetSystemEncodingName()
     // to Unix98)
     char *oldLocale = strdup(setlocale(LC_CTYPE, NULL));
     setlocale(LC_CTYPE, "");
-    char *alang = nl_langinfo(CODESET);
+    const char *alang = nl_langinfo(CODESET);
     setlocale(LC_CTYPE, oldLocale);
     free(oldLocale);