diff --git a/bin/migrations/builder_migrations.ml b/bin/migrations/builder_migrations.ml
index c1381e5..19761a7 100644
--- a/bin/migrations/builder_migrations.ml
+++ b/bin/migrations/builder_migrations.ml
@@ -115,6 +115,11 @@ let f20210712b =
   Cmdliner.Term.(const do_database_action $ const M20210712b.fixup $ setup_log $ datadir),
   Cmdliner.Term.info ~doc "fixup-2021-07-12b"
 
+let f20210910 =
+  let doc = "Undo builds with script and console mixed up." in
+  Cmdliner.Term.(const do_database_action $ const M20210910.fixup $ setup_log $ datadir),
+  Cmdliner.Term.info ~doc "fixup-2021-09-10"
+
 let help_cmd =
   let topic =
     let doc = "Migration to get help on" in
@@ -156,5 +161,6 @@ let () =
         actions (module M20210712a);
         [ f20210712b ];
         actions (module M20210712c);
+        [ f20210910 ];
       ])
   |> Cmdliner.Term.exit
diff --git a/bin/migrations/m20210910.ml b/bin/migrations/m20210910.ml
new file mode 100644
index 0000000..18c5177
--- /dev/null
+++ b/bin/migrations/m20210910.ml
@@ -0,0 +1,18 @@
+let mixups =
+  Caqti_request.collect ~oneshot:true
+    Caqti_type.unit
+    (Caqti_type.tup3 (Builder_db.Rep.id (`build : [`build])) Builder_db.Rep.fpath Builder_db.Rep.fpath)
+"SELECT id, console, script FROM build WHERE console LIKE '%/script.txt' AND script LIKE '%/console.txt'"
+
+let fixup =
+  Caqti_request.exec ~oneshot:true
+    (Caqti_type.tup3 (Builder_db.Rep.id (`build : [`build])) Builder_db.Rep.fpath Builder_db.Rep.fpath)
+    "UPDATE build SET console = ?2, script = ?3 WHERE id = ?1"
+
+let fixup _datadir (module Db : Caqti_blocking.CONNECTION) =
+  let open Rresult.R.Infix in
+  Grej.check_version ~user_version:14L (module Db) >>= fun () ->
+  Db.collect_list mixups () >>= fun mixups ->
+  Grej.list_iter_result (fun (id, console, script) ->
+      Db.exec fixup (id, script, console))
+    mixups
diff --git a/lib/model.ml b/lib/model.ml
index 0adb421..9cc8303 100644
--- a/lib/model.ml
+++ b/lib/model.ml
@@ -296,7 +296,7 @@ let save_console_and_script staging_dir job_name uuid console script =
   in
   save (out_staging "script") script >>= fun () ->
   save (out_staging "console") (console_to_string console) >|= fun () ->
-  (out "script", out "console")
+  (out "console", out "script")
 
 let prepare_staging staging_dir =
   Lwt.return (Bos.OS.Dir.create staging_dir) >>= fun created ->