diff --git a/models/acc_operation.py b/models/acc_operation.py
index a0fe016ce1013a3d0ca8bc9bd18a82519c6631cb..3f6446623e0b9a264c21df185016d5d453cbd259 100644
--- a/models/acc_operation.py
+++ b/models/acc_operation.py
@@ -66,7 +66,7 @@ class AccOperation(models.Model):
                 A.acc_operation_id IS NOT NULL
                 AND A.acc_operation_id = %s
                 AND A.date_slot >= %s
-                AND A.date_slot < %s
+                AND A.date_slot <= %s
             GROUP BY date_trunc('month', A.date_slot);
         """
         query_params = (
@@ -227,7 +227,7 @@ class AccOperation(models.Model):
                 AND A.acc_operation_id IN %s
                 AND ( A.acc_counter_id IN %s OR A.comp_data_type = 'prod' )
                 AND A.date_slot >= %s
-                AND A.date_slot < %s
+                AND A.date_slot <= %s
             GROUP BY date_trunc(%s, A.date_slot)
             ORDER BY date_slot ASC;
             """
@@ -288,7 +288,7 @@ class AccOperation(models.Model):
                     AND A.acc_operation_id IN %s
                     AND A.acc_counter_id IN %s
                     AND A.date_slot >= %s
-                    AND A.date_slot < %s
+                    AND A.date_slot <= %s
                 GROUP BY date_trunc(%s, A.date_slot)
                 ORDER BY date_slot ASC;
             """
@@ -349,7 +349,7 @@ class AccOperation(models.Model):
                 AND A.acc_counter_id IN %s
                 AND A.acc_operation_id IN %s
                 AND A.date_slot >= %s
-                AND A.date_slot < %s
+                AND A.date_slot <= %s
             GROUP BY date_trunc(%s, A.date_slot)
             ORDER BY date_slot ASC;
             """
@@ -416,7 +416,7 @@ class AccOperation(models.Model):
                 AND A.acc_counter_id IN %s
                 AND A.acc_operation_id IN %s
                 AND A.date_slot >= %s
-                AND A.date_slot < %s
+                AND A.date_slot <= %s
             GROUP BY date_trunc(%s, A.date_slot)
             ORDER BY date_slot ASC;
                 """