diff --git a/roles/koji_hub/files/koji-gc.conf b/roles/koji_hub/files/koji-gc.conf
index 007321b8e2..d82499d4c9 100644
--- a/roles/koji_hub/files/koji-gc.conf
+++ b/roles/koji_hub/files/koji-gc.conf
@@ -2,6 +2,8 @@
 #earlier = higher precedence!
 
 [main]
+krb_rdns = True
+
 key_aliases =
     30C9ECF8    fedora-test
     4F2A6FD2    fedora-gold