diff --git a/MANIFEST.in b/MANIFEST.in
index 1d64e63..8c742e8 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,5 +1,6 @@
 include *.py
+include *.pyi
 include CHANGES
 include TODO
 include LICENSE
-recursive-include doc *.html *.gif *.png *.css *.py *.rst *.js *.json  Makefile
\ No newline at end of file
+recursive-include doc *.html *.gif *.png *.css *.py *.rst *.js *.json  Makefile