diff --git a/package.json b/package.json
index 42d3df699..313a22896 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,6 @@
     "sync": "~0.2.2",
     "then-redis": "~0.3.9",
     "underscore": "~1.5.2",
-    "validator": "~2.0.0",
     "ws": "~0.4.31",
     "xml2js": "~0.4.1",
     "xmlrpc": "~1.1.1"
diff --git a/src/api/vm.coffee b/src/api/vm.coffee
index 71baf6da1..6fbf00d4e 100644
--- a/src/api/vm.coffee
+++ b/src/api/vm.coffee
@@ -153,6 +153,7 @@ exports.create = ->
     try xapi.call 'VM.remove_from_other_config', ref, 'disks'
     xapi.call 'VM.add_to_other_config', ref, 'disks', VDIs
 
+    try xapi.call 'VM.remove_from_other_config', ref, 'install-method'
     switch installation.method
       when 'cdrom'
         xapi.call(
@@ -189,7 +190,7 @@ exports.create = ->
       # Finds the VBD associated to the newly created VM which is a
       # CD.
       VBDref = null
-      $each VM.VBDs, (ref, _, _, done) ->
+      $each VM.VBDs, (ref, _1, _2, done) ->
         VBD = xapi.call 'VM.get_record', ref
         # TODO: Checks it has been correctly retrieved.