diff --git a/MANIFEST.in b/MANIFEST.in
index 41b80a8..c5bae65 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,5 +1,6 @@
 include LICENSE
 include LICENSE-3RD-PARTY
 include systemrdl/preprocessor/ppp_runner.pl
+include systemrdl/py.typed
 recursive-include systemrdl/parser/ext *
-recursive-exclude test *
\ No newline at end of file
+recursive-exclude test *