diff --git a/build/bakefiles/files.bkl b/build/bakefiles/files.bkl
index 4b6ea3be50..b592ef699b 100644
--- a/build/bakefiles/files.bkl
+++ b/build/bakefiles/files.bkl
@@ -926,6 +926,7 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
     wx/motif/cursor.h
     wx/motif/dataform.h
     wx/motif/dataobj.h
+    wx/motif/dataobj2.h
     wx/motif/dc.h
     wx/motif/dcclient.h
     wx/motif/dcmemory.h