diff --git a/src/msw/window.cpp b/src/msw/window.cpp
index 4940d71844..a288c5c5c5 100644
--- a/src/msw/window.cpp
+++ b/src/msw/window.cpp
@@ -3423,7 +3423,8 @@ wxWindowMSW::MSWHandleMessage(WXLRESULT *result,
 
                 if (dwObjId == (LPARAM)OBJID_CLIENT && GetOrCreateAccessible())
                 {
-                    return LresultFromObject(IID_IAccessible, wParam, (IUnknown*) GetAccessible()->GetIAccessible());
+                    processed = true;
+                    rc.result = LresultFromObject(IID_IAccessible, wParam, (IUnknown*) GetAccessible()->GetIAccessible());
                 }
                 break;
             }