diff --git a/inventory/builders b/inventory/builders
index 9d39cced09..93ad7a03cd 100644
--- a/inventory/builders
+++ b/inventory/builders
@@ -298,17 +298,17 @@ buildvm-s390x-01.stg.s390.fedoraproject.org
 [builders:children]
 buildhw
 buildvm
-buildvm-aarch64
-buildvm-armv7
-buildvm-ppc64
-buildvm-ppc64le
-buildvm-s390x
+buildvm_aarch64
+buildvm_armv7
+buildvm_ppc64
+buildvm_ppc64le
+buildvm_s390x
 bkernel
 
 [builders_stg:children]
-buildvm-stg
-buildvm-ppc64-stg
-buildvm-ppc64le-stg
-buildvm-aarch64-stg
-buildvm-armv7-stg
-buildvm-s390x-stg
+buildvm_stg
+buildvm_ppc64_stg
+buildvm_ppc64le_stg
+buildvm_aarch64_stg
+buildvm_armv7_stg
+buildvm_s390x_stg