diff --git a/src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine_monitor/vm_monitor.rb b/src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine_monitor/vm_monitor.rb
index 539abefed6..4bdd9bae4e 100644
--- a/src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine_monitor/vm_monitor.rb
+++ b/src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine_monitor/vm_monitor.rb
@@ -465,10 +465,8 @@ module VirtualMachineMonitor
         info_disks.each do |disk|
             next if disk[1].no_exists?
 
-            name = disk[0]
-
             # Delete special characters
-            name.gsub!(/[^0-9A-Za-z]/, '_')
+            name = disk[0].gsub(/[^0-9A-Za-z]/, '_')
 
             str_info << "DISK_#{name}_ACTUAL_PATH=\"[" <<
                 disk[1].ds.name << '] ' << disk[1].path << '" ' << "\n"