diff --git a/manage-credentials b/manage-credentials
index d24bee0..94da717 100755
--- a/manage-credentials
+++ b/manage-credentials
@@ -80,7 +80,7 @@ class CmdOptions(OptionParser):
         elif options.level.upper() in LEVEL.values():
             options.level = options.level.upper()
         else:
-            self.error("Unknown access-level '%s', level must be in %s" %(options.level, self.LEVEL))
+            self.error("Unknown access-level '%s', level must be in %s" %(options.level, LEVEL))
         return tool, options
 
 def create_credentials(options):