diff --git a/mail-server/assertions.nix b/mail-server/assertions.nix
index 025658d..8a346ad 100644
--- a/mail-server/assertions.nix
+++ b/mail-server/assertions.nix
@@ -140,7 +140,7 @@ in
         message = ''
           NixOS Mailserver requires migrating LDAP home directories to UUID scheme
 
-          Check https://nixos-mailserver.readthedocs.io/en/latest/migrations.html#dovecot-ldap-uuid-based-home-directory for required migration steps.
+          Check https://nixos-mailserver.readthedocs.io/en/latest/migrations.html#dovecot-ldap-uuid-based-home-directories for required migration steps.
         '';
       }
     ]