diff --git a/src/web/clients/api/rest-get.md b/src/web/clients/api/rest-get.md
index ae69484..2ba2452 100644
--- a/src/web/clients/api/rest-get.md
+++ b/src/web/clients/api/rest-get.md
@@ -7,6 +7,7 @@ with [`reqwest::get`] to get list of all users who have marked a GitHub project
 
 ```rust,no_run
 #[macro_use]
+extern crate serde;
 extern crate serde_derive;
 extern crate reqwest;
 use reqwest::Error;