diff --git a/deploy_vm.sh b/deploy_vm.sh
index 53cbf31..86de2bc 100755
--- a/deploy_vm.sh
+++ b/deploy_vm.sh
@@ -447,7 +447,7 @@ if [ "${VM_DISK_EXTEND}" -ne 0 ]; then
 
 	echo "INFO : Add new PV to default VG... (vgextend <defaultVG> /dev/vda4)"
 
-        ssh ${SSH_OPT} ${SSH_HOST} 'vgextend $(vgs | awk "/vg/ {print $1}") /dev/vda4' &> /dev/null
+        ssh ${SSH_OPT} ${SSH_HOST} 'vgextend $(vgs | grep vg | tr -s " " | cut -d" " -f2) /dev/vda4' &> /dev/null
 
         if [ $? -ne 0 ]; then
                 echo 'ERROR : problem during add new PV in VG, please finish manually the deploy OR delete VM and IPAM information'