diff --git a/ChangeLog b/ChangeLog
index 681a769..658c1ae 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-01-13  Ben Elliston  <bje@gnu.org>
+
+	* config.sub (maybe_os): Remove second and duplicate -aros*
+	case. Only the first will match. Found by Shellcheck.
+
 2018-01-13  Ben Elliston  <bje@gnu.org>
 
 	* config.sub (maybe_os): Remove second and duplicate *-next
diff --git a/config.sub b/config.sub
index 5ff9a77..f937583 100755
--- a/config.sub
+++ b/config.sub
@@ -1540,9 +1540,6 @@ case $os in
 	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
 		os=-mint
 		;;
-	-aros*)
-		os=-aros
-		;;
 	-zvmoe)
 		os=-zvmoe
 		;;