diff --git a/docs/md/README.md b/docs/md/README.md
index c91ffb3..17602bc 100644
--- a/docs/md/README.md
+++ b/docs/md/README.md
@@ -766,7 +766,7 @@ const albumRouteMapping = {
   }),
   updateState: {
     id: id => actions.selectAlbum(id),
-    track: track => actions.playTrack(track)
+    track: (track, state) => state.id && actions.playTrack(track)
   }
 }
 
diff --git a/package.json b/package.json
index a483439..91e2052 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ion-router",
-  "version": "0.11.3",
+  "version": "0.12.0",
   "description": "elegant powerful routing based on the simplicity of storing url as state",
   "main": "lib/index.js",
   "homepage": "https://cellog.github.io/ion-router",
diff --git a/src/helpers.js b/src/helpers.js
index cb1e695..0edec37 100644
--- a/src/helpers.js
+++ b/src/helpers.js
@@ -69,7 +69,8 @@ export function getStateUpdates(s, newState) {
   const oldState = s.state
   const changes = changed(oldState, newState)
   const update = s.updateState
-  return changes.map(key => (update[key] ? update[key](newState[key]) : false)).filter(t => t)
+  return changes.map(key => (update[key] ? update[key](newState[key], newState) : false))
+    .filter(t => t)
 }
 
 export function updateState(s, params, state) {
diff --git a/test/helpers.test.js b/test/helpers.test.js
index 53d35fd..35d47ee 100644
--- a/test/helpers.test.js
+++ b/test/helpers.test.js
@@ -159,7 +159,7 @@ describe('helper functions', () => {
         c: 3,
       },
       updateState: {
-        a: a => ({ type: 'a', a }),
+        a: (a, s) => ({ type: 'a', a, b: s.b }),
         b: b => ({ type: 'b', b }),
       }
     }, {
@@ -167,7 +167,7 @@ describe('helper functions', () => {
       b: 2,
       c: 5,
     })).eqls([
-      { type: 'a', a: 2 },
+      { type: 'a', a: 2, b: 2 },
     ])
   })
   it('exitRoute', () => {