diff --git a/nixos/tests/gitlab/gitlab.nix b/nixos/tests/gitlab/gitlab.nix
index 762d0a572854..d2ccfe1d7ab3 100644
--- a/nixos/tests/gitlab/gitlab.nix
+++ b/nixos/tests/gitlab/gitlab.nix
@@ -35,7 +35,7 @@ in
 
   nodes = {
     gitlab =
-      { ... }:
+      { config, ... }:
       {
         imports = [ ../common/user-account.nix ];
 
@@ -75,7 +75,14 @@ in
 
         services.dovecot2 = {
           enable = true;
-          enableImap = true;
+          enablePAM = true;
+          settings = {
+            dovecot_config_version = "2.4.3";
+            dovecot_storage_version = config.services.dovecot2.package.version;
+            protocols.imap = true;
+            mail_driver = "maildir";
+            mail_path = "~/mail";
+          };
         };
 
         systemd.services.gitlab-backup.environment.BACKUP = "dump";