diff --git a/src/Events/LivewireDispatcher.php b/src/Events/LivewireDispatcher.php
index fd3bea4..d677727 100644
--- a/src/Events/LivewireDispatcher.php
+++ b/src/Events/LivewireDispatcher.php
@@ -16,11 +16,11 @@ public function register(): void
     }
 
     /** Injects assets inside every full-page response */
-    public function handle(RequestHandled $handled)
+    public function handle(RequestHandled $handled): void
     {
         $identifier = 'NativePHP Livewire Dispatcher';
         $html = $handled->response->getContent();
-        $originalContent = $handled->response->original;
+        $originalContent = $handled->response->original ?? null;
 
         if (! $handled->response->isSuccessful()) {
             return;
@@ -50,7 +50,13 @@ public function handle(RequestHandled $handled)
             HTML)
         );
 
-        $handled->response->original = $originalContent;
+        // Laravel dispatches the ResponseHandled event even for response
+        // objects that don't include the `original` property.
+        // The typehint in Laravel core is wrong, so we ignore
+        /* @phpstan-ignore function.alreadyNarrowedType */
+        if (property_exists($handled->response, 'original')) {
+            $handled->response->original = $originalContent;
+        }
     }
 
     /** Injects assets into given html string (taken from Livewire's injection mechanism) */