diff --git a/awx/main/notifications/slack_backend.py b/awx/main/notifications/slack_backend.py
index 24b7876708..79ed838140 100644
--- a/awx/main/notifications/slack_backend.py
+++ b/awx/main/notifications/slack_backend.py
@@ -50,6 +50,7 @@ class SlackBackend(AWXBaseEmailBackend):
                     else:
                         ret = connection.api_call("chat.postMessage",
                                                   channel=r,
+                                                  as_user=True,
                                                   text=m.subject)
                     logger.debug(ret)
                     if ret['ok']: