diff --git a/client/mysqltest.c b/client/mysqltest.c
index 337a31ad7af..183374ea095 100644
--- a/client/mysqltest.c
+++ b/client/mysqltest.c
@@ -1240,7 +1240,7 @@ void show_diff(DYNAMIC_STRING* ds,
   else
   {
     /* Print diff directly to stdout */
-    fprintf(stderr, "%s", ds_tmp.str);
+    fprintf(stderr, "%s\n", ds_tmp.str);
   }
  
   dynstr_free(&ds_tmp);