diff --git a/modules/Echo.py b/modules/Echo.py
index 6b0eeb4..aacac56 100644
--- a/modules/Echo.py
+++ b/modules/Echo.py
@@ -63,7 +63,7 @@ class Echo(Module):
             userhost    source userhost (unused)
             event       IRC event, used in IRC reply, or none for direct call
             from_admin  whether or not the event came from an admin (unused)
-            groups      list length 1, the message to echo
+            groups      tuple length 1, the message to echo
 
         """