diff --git a/addons/account/models/account_reconcile_model.py b/addons/account/models/account_reconcile_model.py
index 448471ba1d5..7dc1744f9aa 100644
--- a/addons/account/models/account_reconcile_model.py
+++ b/addons/account/models/account_reconcile_model.py
@@ -147,7 +147,7 @@ class AccountReconcileModel(models.Model):
         return action
 
     def _compute_number_entries(self):
-        data = self.env['account.move.line'].read_group([('reconcile_model_id', 'in', self.ids)], ['reconcile_model_ids'], 'reconcile_model_id')
+        data = self.env['account.move.line'].read_group([('reconcile_model_id', 'in', self.ids)], ['reconcile_model_id'], 'reconcile_model_id')
         mapped_data = dict([(d['reconcile_model_id'][0], d['reconcile_model_id_count']) for d in data])
         for model in self:
             model.number_entries = mapped_data.get(model.id, 0)