diff --git a/libtisbackup/copy_vm_xcp.py b/libtisbackup/copy_vm_xcp.py
index 5e65f89..3f96b91 100755
--- a/libtisbackup/copy_vm_xcp.py
+++ b/libtisbackup/copy_vm_xcp.py
@@ -231,8 +231,8 @@ class copy_vm_xcp(backup_generic):
                 return result
             
             #Disable automatic boot
-            if session.xenapi.VM.get_other_config(vm).has_key('auto_poweron'):
-                session.xenapi.VM.remove_from_other_config(vm, "auto_poweron")
+            if session.xenapi.VM.get_other_config(backup_vm).has_key('auto_poweron'):
+                session.xenapi.VM.remove_from_other_config(backup_vm, "auto_poweron")
 
             if not str2bool(self.halt_vm):
                 #delete the snapshot