diff --git a/inventory/builders b/inventory/builders
index bc9090a37a..d0c28c8608 100644
--- a/inventory/builders
+++ b/inventory/builders
@@ -110,6 +110,13 @@ buildvm-s390x-11.s390.fedoraproject.org
 buildvm-s390x-12.s390.fedoraproject.org
 buildvm-s390x-13.s390.fedoraproject.org
 buildvm-s390x-14.s390.fedoraproject.org
+buildvm-s390x-15.s390.fedoraproject.org
+buildvm-s390x-16.s390.fedoraproject.org
+buildvm-s390x-17.s390.fedoraproject.org
+buildvm-s390x-18.s390.fedoraproject.org
+buildvm-s390x-19.s390.fedoraproject.org
+buildvm-s390x-20.s390.fedoraproject.org
+buildvm-s390x-21.s390.fedoraproject.org
 
 [bvmhost_s390x]
 bvmhost-s390x-01.stg.s390.fedoraproject.org