diff --git a/roles/koji_hub/templates/hub.conf.j2 b/roles/koji_hub/templates/hub.conf.j2
index 02c04da7b0..52852b415f 100644
--- a/roles/koji_hub/templates/hub.conf.j2
+++ b/roles/koji_hub/templates/hub.conf.j2
@@ -11,7 +11,7 @@ DBHost = db-koji01
 DBPass = {{ kojiPassword }}
 AuthPrincipal = host/koji{{env_suffix}}.fedoraproject.org
 {% if env == "staging" %}
-ProxyPrincipals = modularity@STG.FEDORAPROJECT.ORG,HTTP/koji.stg.fedoraproject.org@STG.FEDORAPROJECT.ORG
+ProxyPrincipals = modularity@STG.FEDORAPROJECT.ORG,HTTP/koji.stg.fedoraproject.org@STG.FEDORAPROJECT.ORG,sigul/sign-bridge01.stg.phx2.fedoraproject.org@STG.FEDORAPROJECT.ORG
 {% else %}
 ProxyPrincipals = HTTP/koji.fedoraproject.org@FEDORAPROJECT.ORG,sigul/sign-bridge01.phx2.fedoraproject.org@FEDORAPROJECT.ORG
 {% endif %}