diff --git a/scripts/create-darwin-volume.sh b/scripts/create-darwin-volume.sh
index 5214d1652..dac30d72d 100755
--- a/scripts/create-darwin-volume.sh
+++ b/scripts/create-darwin-volume.sh
@@ -15,7 +15,7 @@ disk_identifier() {
 }
 
 volume_list_true() {
-    key=$1 t=$2
+    key=$1
     xpath "/plist/dict/array/dict/key[text()='Volumes']/following-sibling::array/dict/key[text()='$key']/following-sibling::true[1]" 2> /dev/null
 }