diff --git a/src/RestApi.php b/src/RestApi.php
index 1720f68c210..ecc20286b55 100644
--- a/src/RestApi.php
+++ b/src/RestApi.php
@@ -24,6 +24,13 @@ class RestApi {
 	 */
 	protected $endpoints = [];
 
+	/**
+	 * REST API package version.
+	 *
+	 * @var string
+	 */
+	protected $version;
+
 	/**
 	 * Hook into WordPress ready to init the REST API as needed.
 	 */
@@ -31,6 +38,24 @@ class RestApi {
 		add_action( 'rest_api_init', array( $this, 'register_rest_routes' ), 10 );
 	}
 
+	/**
+	 * Return REST API package version.
+	 *
+	 * @return string
+	 */
+	public function get_version() {
+		return $this->version;
+	}
+
+	/**
+	 * Set REST API package version.
+	 *
+	 * @param string $version Version to set.
+	 */
+	public function set_version( $version ) {
+		$this->version = $version;
+	}
+
 	/**
 	 * Register REST API routes.
 	 */
diff --git a/woocommerce-rest-api.php b/woocommerce-rest-api.php
index 884b25e634b..ef0ae00a5d3 100644
--- a/woocommerce-rest-api.php
+++ b/woocommerce-rest-api.php
@@ -28,9 +28,11 @@ $version = '1.1.0';
 /**
  * This callback loads this version of the API.
  */
-$init_callback = function() {
+$init_callback = function() use ( $version ) {
 	require __DIR__ . '/vendor/autoload.php';
-	\WooCommerce\RestApi::instance()->init();
+	$rest_api = \WooCommerce\RestApi::instance();
+	$rest_api->set_version( $version );
+	$rest_api->init();
 };
 
 /**