diff --git a/addons/website/static/src/snippets/s_countdown/000.js b/addons/website/static/src/snippets/s_countdown/000.js
index 8e5895a158a..f0f9269272f 100644
--- a/addons/website/static/src/snippets/s_countdown/000.js
+++ b/addons/website/static/src/snippets/s_countdown/000.js
@@ -125,7 +125,7 @@ const CountdownWidget = publicWidget.Widget.extend({
         this.diff = [];
         if (this._isUnitVisible('d') && !(this.onlyOneUnit && delta < 86400)) {
             this.diff.push({
-                canvas: $('<canvas/>').appendTo(this.$wrapper)[0],
+                canvas: $('<canvas/>', {class: 'o_temp_auto_element'}).appendTo(this.$wrapper)[0],
                 // There is no logical number of unit (total) on which day units
                 //  can be compared against, so we use an arbitrary number.
                 total: 15,
@@ -135,7 +135,7 @@ const CountdownWidget = publicWidget.Widget.extend({
         }
         if (this._isUnitVisible('h') || (this.onlyOneUnit && delta < 86400 && delta > 3600)) {
             this.diff.push({
-                canvas: $('<canvas/>').appendTo(this.$wrapper)[0],
+                canvas: $('<canvas/>', {class: 'o_temp_auto_element'}).appendTo(this.$wrapper)[0],
                 total: 24,
                 label: _t("Hours"),
                 nbSeconds: 3600,
@@ -143,7 +143,7 @@ const CountdownWidget = publicWidget.Widget.extend({
         }
         if (this._isUnitVisible('m') || (this.onlyOneUnit && delta < 3600 && delta > 60)) {
             this.diff.push({
-                canvas: $('<canvas/>').appendTo(this.$wrapper)[0],
+                canvas: $('<canvas/>', {class: 'o_temp_auto_element'}).appendTo(this.$wrapper)[0],
                 total: 60,
                 label: _t("Minutes"),
                 nbSeconds: 60,
@@ -151,7 +151,7 @@ const CountdownWidget = publicWidget.Widget.extend({
         }
         if (this._isUnitVisible('s') || (this.onlyOneUnit && delta < 60)) {
             this.diff.push({
-                canvas: $('<canvas/>').appendTo(this.$wrapper)[0],
+                canvas: $('<canvas/>', {class: 'o_temp_auto_element'}).appendTo(this.$wrapper)[0],
                 total: 60,
                 label: _t("Seconds"),
                 nbSeconds: 1,