diff --git a/Lib/test/test_nis.py b/Lib/test/test_nis.py
index f5224fe..74ceeea 100644
--- a/Lib/test/test_nis.py
+++ b/Lib/test/test_nis.py
@@ -11,6 +11,13 @@
     # only do this if running under the regression suite
     raise TestSkipped, msg
 
+try:
+    # On some systems, this map is only accessible to the
+    # super user
+    maps.remove("passwd.adjunct.byname")
+except ValueError:
+    pass
+
 done = 0
 for nismap in maps:
     if verbose: