diff --git a/lib/gssapi/test_names.c b/lib/gssapi/test_names.c
index b4496afbd..a8c4a6de8 100644
--- a/lib/gssapi/test_names.c
+++ b/lib/gssapi/test_names.c
@@ -123,6 +123,8 @@ main(int argc, char **argv)
     argc -= optidx;
     argv += optidx;
 
+    gsskrb5_set_default_realm("MIT.EDU");
+
     /*
      * test import/export
      */