diff --git a/openupgrade_scripts/scripts/account/18.0.1.3/pre-migration.py b/openupgrade_scripts/scripts/account/18.0.1.3/pre-migration.py
index 33e728094e5..9acf7da585e 100644
--- a/openupgrade_scripts/scripts/account/18.0.1.3/pre-migration.py
+++ b/openupgrade_scripts/scripts/account/18.0.1.3/pre-migration.py
@@ -39,6 +39,7 @@
     ("account.payment", "memo", "char"),
     ("account.payment", "state", "selection"),
     ("account.payment", "is_sent", "boolean"),
+    ("account.move", "made_sequence_gap", "boolean", True),
 ]
 
 
@@ -197,6 +198,21 @@ def fill_statement_line_fields(env):
     )
 
 
+def fill_account_move_made_sequence_gap(env):
+    openupgrade.logged_query(
+        env.cr,
+        """
+        UPDATE account_move am
+        SET made_sequence_gap = False
+        FROM account_move am2
+        WHERE am.journal_id = am2.journal_id
+            AND am.sequence_prefix = am2.sequence_prefix
+            AND am.sequence_number = am2.sequence_number + 1
+            AND am.sequence_number > 1
+        """,
+    )
+
+
 @openupgrade.migrate()
 def migrate(env, version):
     if openupgrade.column_exists(env.cr, "account_cash_rounding", "profit_account_id"):
@@ -249,3 +265,4 @@ def migrate(env, version):
             "account.action_account_unreconcile",
         ],
     )
+    fill_account_move_made_sequence_gap(env)
diff --git a/openupgrade_scripts/scripts/account/18.0.1.3/upgrade_analysis_work.txt b/openupgrade_scripts/scripts/account/18.0.1.3/upgrade_analysis_work.txt
index 226b317b331..f92667c095c 100644
--- a/openupgrade_scripts/scripts/account/18.0.1.3/upgrade_analysis_work.txt
+++ b/openupgrade_scripts/scripts/account/18.0.1.3/upgrade_analysis_work.txt
@@ -104,7 +104,7 @@ account      / account.move             / journal_group_id (many2one)   : NEW re
 # NOTHING TO DO: store = False
 
 account      / account.move             / made_sequence_gap (boolean)   : NEW isfunction: function, stored
-# NOTHING TO DO: will be computed by ORM
+# NOTHING TO DO: Created and filled pre-migration
 
 account      / account.move             / origin_payment_id (many2one)  : NEW relation: account.payment
 account      / account.move             / payment_id (many2one)         : DEL relation: account.payment