diff --git a/libvirt-zsh-backup.sh b/libvirt-zsh-backup.sh
index 3c9ea70..39c6512 100644
--- a/libvirt-zsh-backup.sh
+++ b/libvirt-zsh-backup.sh
@@ -37,7 +37,7 @@ VMDISKS=$(virsh domblklist $VM | egrep -o vd.)
 DISKSPEC=""
 for disk in $VMDISKS
 do
-    DISKSPEC+="--discspec $disk,file=/srv/snapshots/$VM/$VM-$disk-$SNAPNAME.qcow2,snapshot=external "
+    DISKSPEC+="--diskspec $disk,file=/srv/snapshots/$VM/$VM-$disk-$SNAPNAME.qcow2,snapshot=external "
 done
 
 virsh snapshot-create-as --domain $VM --name $SNAPNAME --quiesce --atomic --disk-only $DISKSPEC > /dev/null