diff --git a/src/Owner.py b/src/Owner.py
index 90b30eb18..b4f1cd021 100644
--- a/src/Owner.py
+++ b/src/Owner.py
@@ -538,7 +538,7 @@ class Owner(privmsgs.CapabilityCheckingPrivmsg):
             conf.registerPlugin(name, False)
             irc.replySuccess()
         else:
-            irc.error('There was no callback %s' % name)
+            irc.error('There was no callback %s.' % name)
 
 
 Class = Owner