diff --git a/src/Middleware.php b/src/Middleware.php
index ad1c7658..72cadb17 100644
--- a/src/Middleware.php
+++ b/src/Middleware.php
@@ -36,6 +36,10 @@ public function version(Request $request)
             return md5_file($manifest);
         }
 
+        if (file_exists($manifest = public_path('build/manifest.json'))) {
+            return md5_file($manifest);
+        }
+
         return null;
     }