diff --git a/localedata/ChangeLog b/localedata/ChangeLog
index 247733c42d..2bb02ca891 100644
--- a/localedata/ChangeLog
+++ b/localedata/ChangeLog
@@ -1,5 +1,8 @@
 2000-06-28  Andreas Jaeger  <aj@suse.de>
 
+	* tests-mbwc/tst_wcscat.c (tst_wcscat): Correct format to avoid
+	warning.
+
 	* Makefile (locale_test_suite): Add tst_mbrlen.
 	(tst_mbrlen-ENV): New.
 
diff --git a/localedata/tests-mbwc/tst_wcscat.c b/localedata/tests-mbwc/tst_wcscat.c
index a2c4c5708b..7012a66218 100644
--- a/localedata/tests-mbwc/tst_wcscat.c
+++ b/localedata/tests-mbwc/tst_wcscat.c
@@ -51,7 +51,7 @@ tst_wcscat (FILE * fp, int debug_flg)
 	    {
 	      if (debug_flg)
 		{
-		  fprintf (stdout, "tst_wcscat() : ws1[%d] = 0x%x\n", i,
+		  fprintf (stdout, "tst_wcscat() : ws1[%d] = 0x%lx\n", i,
 			   ws1[i]);
 		}