diff --git a/README.md b/README.md
index 8ff0e77..7b813ea 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ var places = new GooglePlaces('YOUR_API_KEY');
 places.search({keyword: 'Vermonster'}, function(err, response) {
   console.log("search: ", response.results);
 
-  places.details({reference: response.results[0].reference}, function(err, response) {
+  places.details({placeid: response.results[0].place_id}, function(err, response) {
     console.log("search details: ", response.result.website);
     // search details:  http://www.vermonster.com/
   });
@@ -37,7 +37,7 @@ places.autocomplete({input: 'Verm', types: "(cities)"}, function(err, response)
   };
 
   for(var index in response.predictions) {
-    places.details({reference: response.predictions[index].reference}, success);
+    places.details({placeid: response.predictions[index].place_id}, success);
   }
 });
 ```
diff --git a/examples/lookup.js b/examples/lookup.js
index bc59b1f..5d19250 100644
--- a/examples/lookup.js
+++ b/examples/lookup.js
@@ -9,7 +9,7 @@ places.search({keyword: 'Vermonster'}, function(err, response) {
   if(err) { console.log(err); return; }
   console.log("search: ", response.results);
 
-  places.details({reference: response.results[0].reference}, function(err, response) {
+  places.details({placeid: response.results[0].place_id}, function(err, response) {
     if(err) { console.log(err); return; }
     console.log("search details: ", response.result.website);
   });
@@ -25,6 +25,6 @@ places.autocomplete({input: 'Verm', types: "(cities)"}, function(err, response)
   };
 
   for(var index in response.predictions) {
-    places.details({reference: response.predictions[index].reference}, success);
+    places.details({placeid: response.predictions[index].place_id}, success);
   }
 });
diff --git a/lib/google-places.js b/lib/google-places.js
index 2c4a5e7..3ed3510 100644
--- a/lib/google-places.js
+++ b/lib/google-places.js
@@ -31,7 +31,6 @@ GooglePlaces.prototype.search = function(options, cb) {
   options = _.defaults(options, {
     location: [42.3577990, -71.0536364],
     radius: 10,
-    sensor: false,
     language: 'en',
     rankby: 'prominence',
     types: []
@@ -53,7 +52,6 @@ GooglePlaces.prototype.search = function(options, cb) {
 GooglePlaces.prototype.autocomplete = function(options, cb) {
   options = _.defaults(options, {
     language: "en",
-    sensor: false
   });
 
   this._doRequest(this._generateUrl(options, 'autocomplete'), cb);
@@ -62,8 +60,7 @@ GooglePlaces.prototype.autocomplete = function(options, cb) {
 // Goolge place details
 GooglePlaces.prototype.details = function(options, cb) {
   options = _.defaults(options, {
-    reference: options.reference,
-    sensor: false,
+    placeid: options.placeid,
     language: 'en'
   });
 
diff --git a/test/index.test.js b/test/index.test.js
index f7637e0..a995837 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -7,17 +7,17 @@ fakeweb.allowNetConnect = false;
 
 // fake the search
 fakeweb.registerUri({
-  uri: 'https://maps.googleapis.com/maps/api/place/search/json?location=42.357799%2C-71.0536364&radius=10&sensor=false&language=en&rankby=prominence&key=fake_key',
+  uri: 'https://maps.googleapis.com/maps/api/place/search/json?location=42.357799%2C-71.0536364&radius=10&language=en&rankby=prominence&key=fake_key',
   body: '{"results" : [{"name": "Vermonster", "id":"1"}], "status" : "OK"}'
 });
 // fake the autocomplete
 fakeweb.registerUri({
-  uri: 'https://maps.googleapis.com/maps/api/place/autocomplete/json?language=en&sensor=false&key=fake_key',
+  uri: 'https://maps.googleapis.com/maps/api/place/autocomplete/json?language=en&key=fake_key',
   body: '{"predictions" : [{"description": "Vermonster", "id":"1"}, {"description": "Vermont", "id":"2"}, {"description": "Vermilion", "id": "3"}], "status" : "OK"}'
 });
 //fake the details
 fakeweb.registerUri({
-  uri: 'https://maps.googleapis.com/maps/api/place/details/json?reference=ABC123&sensor=false&language=en&key=fake_key',
+  uri: 'https://maps.googleapis.com/maps/api/place/details/json?placeid=ABC123&language=en&key=fake_key',
   body: '{"result" : {"rating": 2.5}, "status" : "OK"}'
 });
 
@@ -83,7 +83,7 @@ vows.describe('Places autocomplete').addBatch({
 vows.describe('Place details').addBatch({
   'new search': {
     topic: function() {
-      new GooglePlaces('fake_key').details({reference: 'ABC123'}, this.callback);
+      new GooglePlaces('fake_key').details({placeid: 'ABC123'}, this.callback);
     },
     'should get details': function(err, response){
       assert.equal(response.result.rating, 2.5);