diff --git a/bin/mn b/bin/mn
index 5cfef8207515f18de895750f828805721440c428..048a003d4af8000175eb0830edfbea9b05c5b4b5 100755
--- a/bin/mn
+++ b/bin/mn
@@ -338,13 +338,13 @@ class MininetRunner( object ):
             mn.ping()
             mn.iperf()
         elif test == 'cli':
-            CLI( mn )
+            cli( mn )
         elif test != 'build':
             mn.waitConnected()
             getattr( mn, test )()
 
         if self.options.post:
-            CLI( mn, script=self.options.post )
+            cli( mn, script=self.options.post )
 
         mn.stop()