diff --git a/Manual.md b/Manual.md
index bc19456..37f5168 100644
--- a/Manual.md
+++ b/Manual.md
@@ -49,6 +49,8 @@ RE: <https://tahoe-lafs.org/pipermail/tahoe-dev/2012-March/007149.html>, work in
 
 Packaging
 
+[Writing tests](HowToWriteTests)
+
 ----
 
 Useful pages which should be in the manual (but where?):