diff --git a/gitosis/principals.py b/gitosis/principals.py
index 1c96acc..89d8e59 100644
--- a/gitosis/principals.py
+++ b/gitosis/principals.py
@@ -78,7 +78,7 @@ class Main(app.App):
 
         if sshUser != "":
             log.info('Running serve_principal for user %s', sshUser)
-            serve_principal(sshUser, principal)
+            serve_principal(sshUser, principals)
             log.info('Done.')
 
 #        if git_dir is None: