diff --git a/inventory/inventory b/inventory/inventory
index 75ea97abd2..aa496d8fdc 100644
--- a/inventory/inventory
+++ b/inventory/inventory
@@ -243,7 +243,7 @@ sign-bridge01.stg.phx2.fedoraproject.org
 # sign vault servers don't listen to ssh by default.
 #
 [sign-vault]
-#sign-vault03.phx2.fedoraproject.org
+sign-vault03.phx2.fedoraproject.org
 #sign-vault04.phx2.fedoraproject.org
 #sign-vault01.stg.phx2.fedoraproject.org
 sign-vault05.phx2.fedoraproject.org