diff --git a/conf.php b/conf.php
index 503eb40..0ba1b47 100644
--- a/conf.php
+++ b/conf.php
@@ -2,3 +2,4 @@
 
 	define('SHOPIFY_APP_API_KEY', '');
 	define('SHOPIFY_APP_SHARED_SECRET', '');
+	define('SHOPIFY_REDIRECT_URL', '');
diff --git a/oauth.php b/oauth.php
index e299f44..bdfc6e4 100644
--- a/oauth.php
+++ b/oauth.php
@@ -15,6 +15,7 @@
 	if (!isset($_GET['code']))
 	{
 		$permission_url = shopify\authorization_url($_GET['shop'], SHOPIFY_APP_API_KEY, array('read_content', 'write_content', 'read_themes', 'write_themes', 'read_products', 'write_products', 'read_customers', 'write_customers', 'read_orders', 'write_orders', 'read_script_tags', 'write_script_tags', 'read_fulfillments', 'write_fulfillments', 'read_shipping', 'write_shipping'));
+        $permission_url = $permission_url . '&redirect_uri='.SHOPIFY_REDIRECT_URL;
 		die("<script> top.location.href='$permission_url'</script>");
 	}