diff --git a/src/api.js b/src/api.js
index 5f69e666e..60ee050d6 100644
--- a/src/api.js
+++ b/src/api.js
@@ -272,6 +272,20 @@ export default class Api {
 
     try {
       await checkPermission.call(context, method)
+
+      // API methods are in a namespace.
+      // Some methods use the namespace or an id parameter like:
+      //
+      // vm.detachPci vm=<string>
+      // vm.ejectCd id=<string>
+      //
+      // The goal here is to standardize the calls by always providing
+      // an id parameter when possible to simplify calls to the API.
+      if (params && params.id === undefined) {
+        const namespace = name.slice(0, name.indexOf('.'))
+        params.id = params[namespace]
+      }
+
       checkParams(method, params)
 
       const resolvedParams = await resolveParams.call(context, method, params)
diff --git a/src/api/vm.coffee b/src/api/vm.coffee
index 426d198b2..33a986994 100644
--- a/src/api/vm.coffee
+++ b/src/api/vm.coffee
@@ -688,14 +688,14 @@ rollingDeltaBackup = $coroutine ({vm, remote, tag, depth}) ->
   })
 
 rollingDeltaBackup.params = {
-  vm: { type: 'string' }
+  id: { type: 'string' }
   remote: { type: 'string' }
   tag: { type: 'string'}
   depth: { type: ['string', 'number'] }
 }
 
 rollingDeltaBackup.resolve = {
-  vm: ['vm', ['VM', 'VM-snapshot'], 'administrate']
+  vm: ['id', ['VM', 'VM-snapshot'], 'administrate']
 }
 
 rollingDeltaBackup.permission = 'admin'
@@ -726,12 +726,12 @@ exports.importDeltaBackup = importDeltaBackup
 deltaCopy = ({ vm, sr }) -> @deltaCopyVm(vm, sr)
 
 deltaCopy.params = {
-  vm: { type: 'string' },
+  id: { type: 'string' },
   sr: { type: 'string' }
 }
 
 deltaCopy.resolve = {
-  vm: [ 'vm', 'VM', 'operate'],
+  vm: [ 'id', 'VM', 'operate'],
   sr: [ 'sr', 'SR', 'operate']
 }