diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index 92325a8ddb6..b733481d64e 100644
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -5779,9 +5779,7 @@ instance.web.form.FieldMany2ManyBinaryMultiFiles = instance.web.form.AbstractFie
         this.fileupload_id = _.uniqueId('oe_fileupload_temp');
         $(window).on(this.fileupload_id, _.bind(this.on_file_loaded, this));
     },
-    start: function() {
-        this._super();
-        instance.web.form.ReinitializeFieldMixin.start.call(this);
+    initialize_content: function() {
         this.$el.on('change', 'input.oe_form_binary_file', this.on_file_change );
     },
     // WARNING: duplicated in 4 other M2M widgets