diff --git a/docsource/modules180-190.rst b/docsource/modules180-190.rst
index e7f797ce0766..da1d6692df19 100644
--- a/docsource/modules180-190.rst
+++ b/docsource/modules180-190.rst
@@ -956,7 +956,7 @@ Module coverage 18.0 -> 19.0
 +---------------------------------------------------+----------------------+-------------------------------------------------+
 | project_timesheet_holidays                        |                      |                                                 |
 +---------------------------------------------------+----------------------+-------------------------------------------------+
-| project_todo                                      |                      |                                                 |
+| project_todo                                      |Done                  |                                                 |
 +---------------------------------------------------+----------------------+-------------------------------------------------+
 | purchase                                          |Done                  |                                                 |
 +---------------------------------------------------+----------------------+-------------------------------------------------+
diff --git a/openupgrade_scripts/scripts/project_todo/19.0.1.0/pre-migration.py b/openupgrade_scripts/scripts/project_todo/19.0.1.0/pre-migration.py
new file mode 100644
index 000000000000..9b3255f9c1e0
--- /dev/null
+++ b/openupgrade_scripts/scripts/project_todo/19.0.1.0/pre-migration.py
@@ -0,0 +1,17 @@
+from openupgradelib import openupgrade
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    """Null ``path`` on the todo action, as the schema upgrade pre-populates
+    it and the module data XML then trips the unique constraint on its own
+    row.
+    """
+    openupgrade.logged_query(
+        env.cr,
+        """
+        UPDATE ir_act_window
+           SET path = NULL
+         WHERE path = 'to-do'
+        """,
+    )