diff --git a/.gitignore b/.gitignore
index af3cc1bc..4d7fa457 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,7 +7,6 @@ build/
 /dist/
 MANIFEST
 /tornado.egg-info/
-_auto2to3*
 .tox/
 .vagrant
 /.coverage
diff --git a/MANIFEST.in b/MANIFEST.in
index ea526699..206ea270 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -13,4 +13,3 @@ include tornado/test/test.crt
 include tornado/test/test.key
 include README.rst
 include runtests.sh
-global-exclude _auto2to3*
\ No newline at end of file