diff --git a/MANIFEST.in b/MANIFEST.in
index 194bf1413..afa74cc40 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -3,6 +3,7 @@ include LICENSE
 include NEWS
 include Snippets/*.py
 include Snippets/README.md
+include Doc/ttx.1
 include MetaTools/*.py
 include Lib/fontTools/ttLib/tables/table_API_readme.txt