1 files changed, 1 insertions, 3 deletions
diff --git a/xfa/fwl/core/cfwl_notedriver.h b/xfa/fwl/core/cfwl_notedriver.h
index a9b2c715db..9e5fa99f6a 100644
--- a/xfa/fwl/core/cfwl_notedriver.h
+++ b/xfa/fwl/core/cfwl_notedriver.h
@@ -29,9 +29,7 @@ class CFWL_NoteDriver {
 
   void SendEvent(CFWL_Event* pNote);
 
-  void RegisterEventTarget(IFWL_Widget* pListener,
-                           IFWL_Widget* pEventSource = nullptr,
-                           uint32_t dwFilter = FWL_EVENT_ALL_MASK);
+  void RegisterEventTarget(IFWL_Widget* pListener, IFWL_Widget* pEventSource);
   void UnregisterEventTarget(IFWL_Widget* pListener);
   void ClearEventTargets(bool bRemoveAll);