diff --git a/libvirt-zsh-backup.sh b/libvirt-zsh-backup.sh
index 61c632a..547b0da 100644
--- a/libvirt-zsh-backup.sh
+++ b/libvirt-zsh-backup.sh
@@ -52,7 +52,7 @@ abortFunction()
     exit 1
 }
 
-VMDISKS=$(virsh domblklist $VM | egrep -o vd.)
+VMDISKS=$(virsh domblklist $VM | grep qcow2 | egrep -o [vs]d.)
 DISKSPEC=""
 for disk in $VMDISKS
 do
@@ -93,7 +93,7 @@ do
     virsh blockcommit $VM $disk --pivot --active >/dev/null
 done
 
-VMDISKS=$(virsh domblklist $VM | egrep vd.)
+VMDISKS=$(virsh domblklist $VM | egrep [vs]d.)
 for disk in $VMDISKS
 do
     if [[ $disk == *"snapshot"* ]]