diff --git a/README.md b/README.md
index 67d9073..7079f35 100644
--- a/README.md
+++ b/README.md
@@ -25,8 +25,8 @@ ## Example
 	'id' => 'item_001',
 	'title' => 'Blue Nikes',
 	'link' => 'https://mystore.com/products/blue-nikes',
-	'image_link' => 'https://mystore.com/images/blue-nikes-001.jpg',
-	'price' => 29.99,
+	'g:image_link' => 'https://mystore.com/images/blue-nikes-001.jpg',
+	'g:price' => 29.99,
 ]);
 
 return $feed->generate();
diff --git a/composer.json b/composer.json
index 4627db1..86b89d4 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
         "laravel",
         "google-shopping-feed"
     ],
-    "version": "2.0.1",
+    "version": "3.0.0",
     "homepage": "https://github.com/wearepixel/laravel-google-shopping-feed",
     "license": "MIT",
     "authors": [
diff --git a/src/LaravelGoogleShoppingFeed.php b/src/LaravelGoogleShoppingFeed.php
index 3d6cd13..8f2e295 100644
--- a/src/LaravelGoogleShoppingFeed.php
+++ b/src/LaravelGoogleShoppingFeed.php
@@ -18,7 +18,7 @@ class LaravelGoogleShoppingFeed
         'id',
         'link',
         'title',
-        'price',
+        'g:price',
         'g:image_link'
     ];