diff --git a/ChangeLog b/ChangeLog
index c963b62..b8ca872 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-01-13  Ben Elliston  <bje@gnu.org>
+
+	* config.sub (maybe_os): Remove duplicate sh64 case as it is
+	matched above. Found by Shellcheck.
+
 2018-01-13  Ben Elliston  <bje@gnu.org>
 
 	* config.sub (maybe_os): Remove duplicate wasm32 case as it is
diff --git a/config.sub b/config.sub
index b98be14..113bb4c 100755
--- a/config.sub
+++ b/config.sub
@@ -1108,9 +1108,6 @@ case $basic_machine in
 	sh5el)
 		basic_machine=sh5le-unknown
 		;;
-	sh64)
-		basic_machine=sh64-unknown
-		;;
 	sparclite-wrs | simso-wrs)
 		basic_machine=sparclite-wrs
 		os=-vxworks