diff --git a/roles/pagure/fedmsg/templates/base.py.j2 b/roles/pagure/fedmsg/templates/base.py.j2
index eddd1f7323..b1aa709b0b 100644
--- a/roles/pagure/fedmsg/templates/base.py.j2
+++ b/roles/pagure/fedmsg/templates/base.py.j2
@@ -3,6 +3,7 @@ config = dict(
 
     # Tell every call to `fedmsg.publish` to use the relay
     active=True,
+    cert_prefix="pagure-{{inventory_hostname_short}}",
 
     environment="prod",