diff --git a/static/src/js/canvas.js b/static/src/js/canvas.js
index 3ae33cb49cc9f8d82bed95331a22a6373b16d311..c12d95d4364ebe1ed4ab33d491f930f2b4b058dd 100644
--- a/static/src/js/canvas.js
+++ b/static/src/js/canvas.js
@@ -669,12 +669,12 @@ odoo.define("oacc_portal_overview_cdc.canvas", function (require) {
             }
 
             // Disable buttons if first or last date
-            if (moment(this.last_day) >= moment(this.maxDate)) {
+            if (moment(this.last_day, "dd/mm/yyyy") >= moment(this.maxDate, "dd/mm/yyyy")) {
                 $('button[id="next-period"]').prop("disabled", true);
             } else {
                 $('button[id="next-period"]').prop("disabled", false);
             }
-            if (moment(this.first_day) <= moment(this.minDate)) {
+            if (moment(this.first_day, "dd/mm/yyyy") <= moment(this.minDate, "dd/mm/yyyy")) {
                 $('button[id="previous-period"]').prop("disabled", true);
             } else {
                 $('button[id="previous-period"]').prop("disabled", false);