diff --git a/addons/report_analytic_planning/report_analytic_planning.py b/addons/report_analytic_planning/report_analytic_planning.py
index 0080d9da379..fade24c116b 100644
--- a/addons/report_analytic_planning/report_analytic_planning.py
+++ b/addons/report_analytic_planning/report_analytic_planning.py
@@ -284,7 +284,7 @@ Business Days - (Time Allocation of Tasks + Time Allocation without Tasks + Holi
         cr.execute(""" CREATE OR REPLACE VIEW report_account_analytic_planning_user AS (
         SELECT 
             planning.id AS planning_id,
-            max(planning.id)+COALESCE(users.id,1) AS id,
+            planning.id::varchar(32) || '-' || COALESCE(users.id,0)::varchar(32) AS id,
             planning.business_days,
             users.id AS user_id,
             (SELECT sum(line1.amount_in_base_uom) 
@@ -329,7 +329,7 @@ Business Days - (Time Allocation of Tasks + Time Allocation without Tasks + Holi
 
         SELECT
             planning.id AS planning_id,
-            max(planning.id) AS id,
+            planning.id::varchar(32) || '-' || '0' AS id,
             planning.business_days,
             line.user_id,
             (SELECT SUM(line1.amount_in_base_uom)