diff --git a/doc/examples/autojump-if-empty/README.md b/doc/examples/autojump-if-empty/README.md
index 0b518a4..8b4a7fc 100644
--- a/doc/examples/autojump-if-empty/README.md
+++ b/doc/examples/autojump-if-empty/README.md
@@ -25,8 +25,9 @@ However, with UltiSnips, it can be done via only one keypress:
 
 ## Implementation
 
-Using awesome px library, which provides set of functions to make coding
-little bit easier.
+Using awesome [vim-pythonx
+library](https://github.com/reconquest/vim-pythonx/blob/master/pythonx/px/snippets.py),
+which provides set of functions to make coding little bit easier.
 
 ```
 global !p