diff --git a/mkinitramfs-ll.bash b/mkinitramfs-ll.bash
index 381e54c..c127be3 100755
--- a/mkinitramfs-ll.bash
+++ b/mkinitramfs-ll.bash
@@ -256,7 +256,7 @@ function docpio {
 	if [[ -f ${initramfs}.${extension} ]]; then
 	    mv ${initramfs}.${extension}{,.old}
 	fi
-	if [[ -n "${extension#cpio}" ]]; then
+	if [[ -n "${ext#cpio}" ]]; then
 		cmd+=" | ${opts[-compressor]} -c"
 	fi
 	eval ${cmd} > /${initramfs}.${extension} ||
diff --git a/mkinitramfs-ll.zsh b/mkinitramfs-ll.zsh
index b5daf7e..fb567e3 100755
--- a/mkinitramfs-ll.zsh
+++ b/mkinitramfs-ll.zsh
@@ -251,7 +251,7 @@ function docpio {
 	if [[ -f ${initramfs}.${extension} ]] {
 	    mv ${initramfs}.${extension}{,.old}
 	}
-	if [[ -n ${extension#cpio} ]] {
+	if [[ -n ${ext#cpio} ]] {
 		cmd+=" | ${=opts[-compressor]} -c"
 	}
 	eval ${=cmd} > ${initramfs}.${extension} ||