diff --git a/src/client.coffee b/src/client.coffee
index 87226a01..ec367c32 100644
--- a/src/client.coffee
+++ b/src/client.coffee
@@ -346,6 +346,7 @@ class SlackClient
             else
               # bot doesn't have an associated user id
               @botUserIdMap[event.bot_id] = false
+              event.user = {}
           else
             event.user = {}