diff --git a/entry.sh b/entry.sh
index 46355c2..246ef67 100755
--- a/entry.sh
+++ b/entry.sh
@@ -11,9 +11,9 @@ function first_stage(){
 	echo -n luks_password: 
 	read -s luks_password
 	
-	if [ -b /dev/mapper/cryptlvm ]; then
+	if [[ -b /dev/mapper/cryptlvm ]]; then
 		cryptsetup luksClose cryptlvm
-	close
+	fi
 	
 	wipefs -a ${DEVICE}