diff --git a/README.md b/README.md
index 0e3f5a0..c696614 100644
--- a/README.md
+++ b/README.md
@@ -20,10 +20,10 @@ sudo btrfs-send-chunks-active \
   /target-snapshot-path/20230213T1809_u/
 ```
 
-See `test16()`.
+See [test16()](src/subprocess_util/test.py).
 
 ## Example to replicate a BTRFS subvolume with an active receiving side
 
 The receiving side "pulls" the BTRFS snapshot from the sending side. The receiver needs password-less SSH access to the sender.
 
-See `test17()`.
+See [test17()](src/subprocess_util/test.py).