diff --git a/jabbergram.py b/jabbergram.py
index 828ca3b..1d53dca 100755
--- a/jabbergram.py
+++ b/jabbergram.py
@@ -179,7 +179,7 @@ class Jabbergram(sleekxmpp.ClientXMPP):
                                       'but the XMPP server doesn\'t support H'\
                                       'TTP Upload.'
 
-                    elif update.message.new_chat_members:
+                    elif update.message.new_chat_member:
                         message = 'This user has joined the group.'
                     elif update.message.left_chat_member:
                         message = 'This user has left the group.'