1 files changed, 1 insertions, 0 deletions
diff --git a/MANIFEST b/MANIFEST
index 09ac47f0b9..238142acfc 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -188,6 +188,7 @@ lib/thwait.rb
 lib/time.rb
 lib/timeout.rb
 lib/tracer.rb
+lib/tsort.rb
 lib/uri.rb
 lib/uri/common.rb
 lib/uri/ftp.rb