diff --git a/MANIFEST.in b/MANIFEST.in
index 0aceb71..96acc57 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,6 +1,7 @@
 include AUTHORS
 include ChangeLog
 include README.rst
+include HACKING.rst
 include requirements.txt
 include test-requirements.txt
 exclude .gitignore