diff --git a/Userland/Libraries/LibWeb/HTML/EventLoop/Task.h b/Userland/Libraries/LibWeb/HTML/EventLoop/Task.h
index dfbd0a3a14e..13c73ccce81 100644
--- a/Userland/Libraries/LibWeb/HTML/EventLoop/Task.h
+++ b/Userland/Libraries/LibWeb/HTML/EventLoop/Task.h
@@ -38,6 +38,9 @@ public:
 
         // https://html.spec.whatwg.org/multipage/webappapis.html#navigation-and-traversal-task-source
         NavigationAndTraversal,
+
+        // https://w3c.github.io/FileAPI/#fileReadingTaskSource
+        FileReading,
     };
 
     static NonnullOwnPtr<Task> create(Source source, DOM::Document const* document, JS::SafeFunction<void()> steps)