diff --git a/config.sub b/config.sub
index 3d6dc83..e2d8d6f 100755
--- a/config.sub
+++ b/config.sub
@@ -594,6 +594,9 @@ case $basic_machine in
 	m88k-omron*)
 		os=-luna
 		;;
+	*-sequent)
+		os=-bsd
+		;;
 	*-crds)
 		os=-unos
 		;;