diff --git a/Userland/Libraries/LibWeb/Forward.h b/Userland/Libraries/LibWeb/Forward.h
index 1ebaf204fd..7bd1e2a67c 100644
--- a/Userland/Libraries/LibWeb/Forward.h
+++ b/Userland/Libraries/LibWeb/Forward.h
@@ -340,6 +340,7 @@ class DOMStringMap;
 class ErrorEvent;
 class EventHandler;
 class EventLoop;
+class FormAssociatedElement;
 class FormDataEvent;
 class History;
 class HTMLAnchorElement;