diff --git a/account_statement_transactionid_completion/statement.py b/account_statement_transactionid_completion/statement.py
index db793333..036bf65b 100644
--- a/account_statement_transactionid_completion/statement.py
+++ b/account_statement_transactionid_completion/statement.py
@@ -31,8 +31,9 @@ class AccountStatementCompletionRule(Model):
     
     _inherit = "account.statement.completion.rule"
     
-    def _get_functions(self):
-        res = super (self,AccountStatementCompletionRule)._get_functions()
+    def _get_functions(self, cr, uid, context=None):
+        res = super (AccountStatementCompletionRule, self)._get_functions(
+                cr, uid, context=context)
         res.append(('get_from_transaction_id_and_so', 'From line reference (based on SO transaction ID'))
         return res