diff --git a/grubby-bls b/grubby-bls
index 6e0acb6..5ac7c6a 100755
--- a/grubby-bls
+++ b/grubby-bls
@@ -127,13 +127,13 @@ get_default_index() {
 
     # GRUB2 and zipl use different fields to set the default entry
     if [[ $bootloader = "grub2" ]]; then
-	title="$default"
+	id="$default"
     else
 	version="$default"
     fi
 
     for i in ${!bls_file[@]}; do
-        if [[ $title = ${bls_title[$i]} || $version = ${bls_version[$i]} ||
+        if [[ $title = ${bls_title[$i]} || $id = ${bls_id[$i]} ||
            $i -eq $index ]]; then
             echo $i
             return