diff --git a/python/MANIFEST.in b/python/MANIFEST.in
index db6309d..824b377 100644
--- a/python/MANIFEST.in
+++ b/python/MANIFEST.in
@@ -1,4 +1,5 @@
 include include/olm/olm.h
 include include/olm/pk.h
+include include/olm/sas.h
 include Makefile
 include olm_build.py