diff --git a/PVE/QMPClient.pm b/PVE/QMPClient.pm
index 2277fef3..6be4a413 100755
--- a/PVE/QMPClient.pm
+++ b/PVE/QMPClient.pm
@@ -126,6 +126,8 @@ sub cmd {
 		 $cmd->{execute} eq 'query-savevm' ||
 		 $cmd->{execute} eq 'delete-drive-snapshot' || 
 		 $cmd->{execute} eq 'guest-shutdown' ||
+		 $cmd->{execute} eq 'blockdev-snapshot-internal-sync' ||
+		 $cmd->{execute} eq 'blockdev-snapshot-delete-internal-sync' ||
 		 $cmd->{execute} eq 'snapshot-drive'  ) {
 	    $timeout = 10*60; # 10 mins ?
 	} else {
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index b60be59e..cf84255c 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -4288,7 +4288,7 @@ sub qemu_volume_snapshot {
     my $running = check_running($vmid);
 
     if ($running && do_snapshots_with_qemu($storecfg, $volid)){
-	vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
+	vm_mon_cmd($vmid, 'blockdev-snapshot-internal-sync', device => $deviceid, name => $snap);
     } else {
 	PVE::Storage::volume_snapshot($storecfg, $volid, $snap);
     }
@@ -4310,7 +4310,7 @@ sub qemu_volume_snapshot_delete {
     }
 
     if ($running && do_snapshots_with_qemu($storecfg, $volid)){
-	vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
+	vm_mon_cmd($vmid, 'blockdev-snapshot-delete-internal-sync', device => $deviceid, name => $snap);
     } else {
 	PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
     }