diff --git a/LICENSE.md b/LICENSE.md
index b0ffb30..4f862c5 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -8,4 +8,7 @@ If you feel your use of code examples falls outside fair use or the permission g
 
 If you are interested in this code, please consider buying a copy of the book, which is available in many formats via oreilly.com: 
 
-[oreilly.com/catalog/0636920024491] [book-link]
\ No newline at end of file
+[oreilly.com/catalog/0636920024491] [book-link]
+
+[book-link]: http://oreilly.com/catalog/0636920024491
+[permissions@oreilly.com]: mailto:permissions@oreilly.com
\ No newline at end of file