diff --git a/roles/httpd/reverseproxy/templates/reversepassproxy.koji.conf b/roles/httpd/reverseproxy/templates/reversepassproxy.koji.conf
index 9fc975a753..4617957aba 100644
--- a/roles/httpd/reverseproxy/templates/reversepassproxy.koji.conf
+++ b/roles/httpd/reverseproxy/templates/reversepassproxy.koji.conf
@@ -4,5 +4,10 @@ ProxyPreserveHost On
 ProxyTimeout 10800
 TimeOut 10800
 
+{% if 'phx2' in inventory_hostname %}
 ProxyPass {{ localpath }} {{ proxyurl }}{{remotepath}}
 ProxyPassReverse {{ localpath }} {{ proxyurl }}{{remotepath}}
+{% else %}
+ErrorDocument 421 "You have hit an incorrect proxy for koji due to a bug in Firefox. Please refresh"
+Redirect 421 /
+{% endif %}