diff --git a/addons/web_editor/static/src/js/editor/snippets.editor.js b/addons/web_editor/static/src/js/editor/snippets.editor.js
index 276a86d1ab3..53a50888327 100644
--- a/addons/web_editor/static/src/js/editor/snippets.editor.js
+++ b/addons/web_editor/static/src/js/editor/snippets.editor.js
@@ -296,7 +296,7 @@ var SnippetEditor = Widget.extend({
      */
     buildSnippet: async function () {
         for (var i in this.styles) {
-            this.styles[i].onBuilt();
+            await this.styles[i].onBuilt();
         }
         await this.toggleTargetVisibility(true);
     },
diff --git a/addons/web_editor/static/src/js/editor/snippets.options.js b/addons/web_editor/static/src/js/editor/snippets.options.js
index ec1d6854850..cf851d67904 100644
--- a/addons/web_editor/static/src/js/editor/snippets.options.js
+++ b/addons/web_editor/static/src/js/editor/snippets.options.js
@@ -2999,8 +2999,9 @@ const SnippetOptionWidget = Widget.extend({
      * menu. Note: this is called after the start and onFocus methods.
      *
      * @abstract
+     * @returns {Promise|undefined}
      */
-    onBuilt: function () {},
+    async onBuilt() {},
     /**
      * Called when the parent edition overlay is removed from the associated
      * snippet (another snippet enters edition for example).