diff --git a/sql_request_abstract/models/sql_request_mixin.py b/sql_request_abstract/models/sql_request_mixin.py
index 9aced3863..fd65c744c 100644
--- a/sql_request_abstract/models/sql_request_mixin.py
+++ b/sql_request_abstract/models/sql_request_mixin.py
@@ -144,9 +144,11 @@ class SQLRequestMixin(models.AbstractModel):
         if mode in ('view', 'materialized_view'):
             rollback = False
 
-        params = params or {}
         # pylint: disable=sql-injection
-        query = self.query % params
+        if params:
+            query = self.query % params
+        else:
+            query = self.query
         query = query.decode('utf-8')
 
         if mode in ('fetchone', 'fetchall'):