diff --git a/inventory/builders b/inventory/builders
index cbd5eb69b8..829dccde52 100644
--- a/inventory/builders
+++ b/inventory/builders
@@ -227,7 +227,8 @@ arm04-builder17.arm.fedoraproject.org
 arm04-builder18.arm.fedoraproject.org
 arm04-builder19.arm.fedoraproject.org
 arm04-builder20.arm.fedoraproject.org
-arm04-builder21.arm.fedoraproject.org
+# for some reason this soc just doesn't appear anymore. 2016-02-20 - kevin
+#arm04-builder21.arm.fedoraproject.org
 arm04-builder22.arm.fedoraproject.org
 arm04-builder23.arm.fedoraproject.org