diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index 673bfc7058e..57b528e7ecf 100644
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -1892,10 +1892,11 @@ instance.web.form.WidgetButton = instance.web.form.FormWidget.extend({
         if (this.node.attrs.icon && (! /\//.test(this.node.attrs.icon))) {
             this.node.attrs.icon = '/web/static/src/img/icons/' + this.node.attrs.icon + '.png';
         }
-        this.view.on('view_content_has_changed', this, this.check_disable);
     },
     start: function() {
         this._super.apply(this, arguments);
+        this.view.on('view_content_has_changed', this, this.check_disable);
+        this.check_disable();
         this.$el.click(this.on_click);
         if (this.node.attrs.help || instance.session.debug) {
             this.do_attach_tooltip();