diff --git a/src/mzscheme/src/string.c b/src/mzscheme/src/string.c
index a48081bd0c..d14918388d 100644
--- a/src/mzscheme/src/string.c
+++ b/src/mzscheme/src/string.c
@@ -207,7 +207,11 @@ static char *nl_langinfo(int which)
 #else
 static char *mz_iconv_nl_langinfo(){
   char *s;
-  s = nl_langinfo(0);
+# if HAVE_CODESET
+  s = nl_langinfo(CODESET);
+# else
+  s = NULL;
+# endif
   if (!s)
     return "";
   else