diff --git a/runbot/migrations/17.0.5.5/pre-migration.py b/runbot/migrations/17.0.5.5/pre-migration.py
new file mode 100644
index 00000000..9f9fe3a3
--- /dev/null
+++ b/runbot/migrations/17.0.5.5/pre-migration.py
@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+
+import logging
+
+try:
+    from odoo.upgrade import util
+except ImportError:
+    util = None
+
+_logger = logging.getLogger(__name__)
+
+def migrate(cr, version):
+    if util:
+        util.remove_field(cr, "runbot.build.config", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.build.config.step", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.build.error", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.error.regex", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.bundle", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.codeowner", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.dockerfile", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.host", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.trigger", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.remote", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.repo", "message_main_attachment_id")
+        util.remove_field(cr, "runbot.team", "message_main_attachment_id")
+    else:
+        _logger.error('Missing utils, cannot migrate to 17.0')
\ No newline at end of file