diff --git a/addons/account/models/account_bank_statement.py b/addons/account/models/account_bank_statement.py
index a3f1544987e..c9634d5f270 100644
--- a/addons/account/models/account_bank_statement.py
+++ b/addons/account/models/account_bank_statement.py
@@ -274,12 +274,12 @@ class AccountBankStatement(models.Model):
         """ Changes statement state to Running."""
         for statement in self:
             if not statement.name:
-                context = {'ir_sequence_date', statement.date}
+                context = {'ir_sequence_date': statement.date}
                 if statement.journal_id.sequence_id:
-                    st_number = statement.journal_id.sequence_id.with_context(context).next_by_id()
+                    st_number = statement.journal_id.sequence_id.with_context(**context).next_by_id()
                 else:
                     SequenceObj = self.env['ir.sequence']
-                    st_number = SequenceObj.with_context(context).next_by_code('account.bank.statement')
+                    st_number = SequenceObj.with_context(**context).next_by_code('account.bank.statement')
                 statement.name = st_number
             statement.state = 'open'