diff --git a/account_financial_report/report/trial_balance.py b/account_financial_report/report/trial_balance.py
index 8315fc13f66..3600b615f18 100644
--- a/account_financial_report/report/trial_balance.py
+++ b/account_financial_report/report/trial_balance.py
@@ -347,7 +347,12 @@ def _get_data(
         tb_initial_acc = []
         for account in accounts:
             tb_initial_acc.append(
-                {"account_id": account.id, "balance": 0.0, "amount_currency": 0.0}
+                {
+                    "account_id": account.id,
+                    "balance": 0.0,
+                    "amount_currency": 0.0,
+                    "account_internal_group": account.internal_group,
+                }
             )
         initial_domain_bs = self._get_initial_balances_bs_ml_domain(
             account_ids,