diff --git a/addons/web/static/src/js/views/form_relational_widgets.js b/addons/web/static/src/js/views/form_relational_widgets.js
index 428a2fe4758..ba6573ed306 100644
--- a/addons/web/static/src/js/views/form_relational_widgets.js
+++ b/addons/web/static/src/js/views/form_relational_widgets.js
@@ -1490,7 +1490,9 @@ var FieldMany2ManyTags = AbstractManyField.extend(common.CompletionFieldMixin, c
         var id = $(ev.currentTarget).data('id');
 
         var self = this;
-        this.dataset._model.call('write', [id, {'color': color}]).done(function(){
+        this.dataset.call('write', [id, {'color': color}]).done(function(){
+            self.dataset.cache[id].from_read = {};
+            self.dataset.evict_record(id);
             var tag = self.$el.find("span.badge[data-id='" + id + "']");
             var old_color = tag.data('color');
             tag.removeClass('o_tag_color_' + old_color);