diff --git a/userapi/mail/mail_test.go b/userapi/mail/mail_test.go
index 7a4d97abf..93753af60 100644
--- a/userapi/mail/mail_test.go
+++ b/userapi/mail/mail_test.go
@@ -1,3 +1,5 @@
+//+build test_mail
+
 package mail
 
 import (