diff --git a/deploy_vm.sh b/deploy_vm.sh
index 61dde7b..ccdb8fe 100755
--- a/deploy_vm.sh
+++ b/deploy_vm.sh
@@ -445,16 +445,9 @@ if [ "${VM_DISK_EXTEND}" -ne 0 ]; then
                 exit 1
         fi
 
-	DEFAULT_VG=$(vgs | awk '/vg/ {print $1}')
-
-	if [ $? -ne 0 ]; then
-            echo 'ERROR : problem during get the name of the default VG'
-            exit 1
-	fi
-
 	echo "INFO : Add new PV to VG ${DEFAULT_VG}... (vgextend ${DEFAULT_VG} /dev/vda4)"
 
-        ssh ${SSH_OPT} ${SSH_HOST} "vgextend ${DEFAULT_VG} /dev/vda4" &> /dev/null
+        ssh ${SSH_OPT} ${SSH_HOST} "vgextend $(vgs | awk '/vg/ {print $1}') /dev/vda4" &> /dev/null
 
         if [ $? -ne 0 ]; then
                 echo 'ERROR : problem during add new PV in VG, please finish manually the deploy OR delete VM and IPAM information'
@@ -462,15 +455,8 @@ if [ "${VM_DISK_EXTEND}" -ne 0 ]; then
         fi
 
         echo "INFO : Resize LV on disk... (RESIZE VM LV)"
-        
-	DEFAULT_LV_ROOT=$(find /dev/mapper -name '*root*')
 
-	if [ $? -ne 0 ]; then
-            echo 'ERROR : problem during get the name of the default root LV'
-            exit 1
-	fi
-
-	ssh ${SSH_OPT} ${SSH_HOST} "lvextend -l +100%FREE ${DEFAULT_LV_ROOT}" &> /dev/null
+	ssh ${SSH_OPT} ${SSH_HOST} "lvextend -l +100%FREE $(find /dev/mapper -name '*root*')" &> /dev/null
         
 	if [ $? -ne 0 ]; then
                 echo 'ERROR : problem during resizing LV, please finish manually the deploy OR delete VM and IPAM information'