diff --git a/tags/train-uc.yml b/tags/train-uc.yml
index a36e99f9ef..814e0c1495 100644
--- a/tags/train-uc.yml
+++ b/tags/train-uc.yml
@@ -831,6 +831,7 @@ packages:
 - project: puppet-rabbitmq
   tags:
     train-uc:
+      source-branch: 2cd0fb2abc001a76e7e35446231773e0e54c1ff8
 - project: puppet-redis
   tags:
     train-uc: