diff --git a/src/api/vm.coffee b/src/api/vm.coffee
index 79a66962a..426d198b2 100644
--- a/src/api/vm.coffee
+++ b/src/api/vm.coffee
@@ -480,7 +480,7 @@ set = $coroutine (params) ->
 
     if auto_poweron
       yield xapi.call 'VM.add_to_other_config', ref, 'auto_poweron', 'true'
-      yield xapi.setPoolProperties({autoPowerOn: true})
+      yield xapi.setPoolProperties({autoPoweron: true})
     else
       yield xapi.call 'VM.remove_from_other_config', ref, 'auto_poweron'
 
diff --git a/src/xapi.js b/src/xapi.js
index b6a66f824..6f0aeb8c2 100644
--- a/src/xapi.js
+++ b/src/xapi.js
@@ -408,8 +408,8 @@ export default class Xapi extends XapiBase {
         nameLabel,
         nameDescription
       }),
-      this._updateObjectMapProperty(pool, 'other_config', {
-        autoPoweron
+      autoPoweron != null && this._updateObjectMapProperty(pool, 'other_config', {
+        autoPoweron: autoPoweron ? 'on' : null
       })
     ])
   }