diff --git a/users/doc.go b/users/doc.go
index fdb9e5b..ef87891 100644
--- a/users/doc.go
+++ b/users/doc.go
@@ -8,5 +8,8 @@ routers.go: router binding and core logic
 serializers.go: definition the schema of return data
 
 validators.go: definition the validator of form data
+
+unit_test.go: contains unit tests for the module
 */
+
 package users