diff --git a/_packs/controllers/search_controller.js b/_packs/controllers/search_controller.js
index b1f8bea..955425b 100644
--- a/_packs/controllers/search_controller.js
+++ b/_packs/controllers/search_controller.js
@@ -16,7 +16,7 @@ export default class extends Controller {
   }
 
   connect () {
-    const q = new URLSearchParams(window.location.search).get('q').trim()
+    const q = new URLSearchParams(window.location.search).get('q')?.trim()
 
     if (q) {
       this.qTarget.value = q