diff --git a/models/enercoop_operation.py b/models/enercoop_operation.py
index 057f4f8ace3ec15220810e21be1a80f5917a3ff2..02e7bfb80547e5727a1ba461c4f5b5c304386137 100644
--- a/models/enercoop_operation.py
+++ b/models/enercoop_operation.py
@@ -587,8 +587,7 @@ class EnercoopOperation(models.Model):
                         JOIN enercoop_operation E ON E.id = A.enercoop_operation_id
                     WHERE A.enercoop_operation_id IS NOT NULL
                         AND A.enercoop_operation_id IN %s
-                        AND ( A.enercoop_counter_id = %s
-                        OR A.enercoop_counter_id = NULL )
+                        AND A.enercoop_counter_id = %s
                         AND A.date_slot >= %s
                         AND A.date_slot < %s
                     GROUP BY A.comp_data_type, A.date_slot