diff --git a/docs/tech/index.txt b/docs/tech/index.txt
index 1e318a03aa..602434572f 100644
--- a/docs/tech/index.txt
+++ b/docs/tech/index.txt
@@ -16,7 +16,7 @@ tn0012.txt   wxWindows platform, toolkit and library names
 tn0013.txt   How to make a wxGTK distribution
 tn0014.txt   XRC resources format specification
 tn0015.txt   How to add new bitmaps to wxWindows UI elements
-tn0016.txt   How to add new files and libraries to wxWindows build system
+tn0016.txt   How to add new files and libraries to wxWindows build system (Bakefile)
 tn0017.txt   How to write unit tests for wxWindows classes