@@ -929,7 +929,7 @@ if [[ "$ENABLED_SERVICES" =~ "n-cpu" ]]; then

     # Destroy old instances

     instances=`virsh list --all | grep $INSTANCE_NAME_PREFIX | sed "s/.*\($INSTANCE_NAME_PREFIX[0-9a-fA-F]*\).*/\1/g"`

-    if [ ! $instances = "" ]; then

+    if [ ! "$instances" = "" ]; then

         echo $instances | xargs -n1 virsh destroy || true

         echo $instances | xargs -n1 virsh undefine || true

     fi