diff --git a/edi_exchange_template_oca/migrations/18.0.1.3.3/pre-migration.py b/edi_exchange_template_oca/migrations/18.0.1.3.3/pre-migration.py
new file mode 100644
index 000000000..177461e9d
--- /dev/null
+++ b/edi_exchange_template_oca/migrations/18.0.1.3.3/pre-migration.py
@@ -0,0 +1,21 @@
+# Copyright 2026 NuoBiT Solutions - Eric Antones <eantones@nuobit.com>
+# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).
+from openupgradelib import openupgrade
+
+_xmlid_renames = [
+    (
+        "edi_exchange_template_oca.act_open_edi_exchange_template_output_view_tree",
+        "edi_exchange_template_oca.act_open_edi_exchange_template_output_view_list",
+    ),
+]
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    # Odoo 18 renamed the act_window_view mode 'tree' -> 'list' and converts
+    # existing ir_act_window_view rows in place, while this module renamed the
+    # xmlid of its list-mode record accordingly. Without renaming the xmlid on
+    # upgrade, the XML load finds no ir_model_data match and INSERTs a new row,
+    # which collides with the converted one on the
+    # act_window_view_unique_mode_per_action constraint.
+    openupgrade.rename_xmlids(env.cr, _xmlid_renames)
diff --git a/edi_exchange_template_oca/readme/CONTRIBUTORS.md b/edi_exchange_template_oca/readme/CONTRIBUTORS.md
index 6068cb58b..114d986d4 100644
--- a/edi_exchange_template_oca/readme/CONTRIBUTORS.md
+++ b/edi_exchange_template_oca/readme/CONTRIBUTORS.md
@@ -3,3 +3,4 @@
 - Italo Lopes \<<italo.lopes@camptocamp.com>\>
 - Hadrien HUVELLE \<<hadrien.huvelle@camptocamp.com>\>
 - Maksym Yankin \<<maksym.yankin@camptocamp.com>\>
+- Eric Antones \<<eantones@nuobit.com>\>