diff --git a/python/MANIFEST.in b/python/MANIFEST.in
index bfddd4f..db6309d 100644
--- a/python/MANIFEST.in
+++ b/python/MANIFEST.in
@@ -1,3 +1,4 @@
-include olm.h
+include include/olm/olm.h
+include include/olm/pk.h
 include Makefile
 include olm_build.py