diff --git a/scripts/telegram.coffee b/scripts/telegram.coffee
index 83abc03..c946d77 100644
--- a/scripts/telegram.coffee
+++ b/scripts/telegram.coffee
@@ -96,7 +96,7 @@ module.exports = (robot) ->
       else
         res.send "fatto!"
 
-  robot.respond /(mi )?invit(i|ami) (in|nel gruppo) (.+)\??/, (res) ->
+  robot.respond /(mi )?invit(i|ami) (in|nel gruppo) ([^?]+)\??/, (res) ->
     denied = ['BZBZ ADMIN-NOT-DETECTED', 'BZBZ IS-NOT-AUTHORIZED', 'BZBZ ACCESS-DENIED']
     nope   = ['ahahah NO', 'mai sentito questo?', 'invita anche me magari']
     ok     = ['provvedo subito', 'ok', 'certo', 'va bene']