diff --git a/config.sub b/config.sub
index 9eaa499ce05..171854d0488 100755
--- a/config.sub
+++ b/config.sub
@@ -178,6 +178,10 @@ case $basic_machine in
 	crds | unos)
 		basic_machine=m68k-crds
 		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
 	encore | umax | mmax)
 		basic_machine=ns32k-encore
 		os=-bsd