diff --git a/twine/package.py b/twine/package.py
index 3ce274da..e31d4fd4 100644
--- a/twine/package.py
+++ b/twine/package.py
@@ -52,7 +52,6 @@
 
 DIST_EXTENSIONS = {
     ".whl": "bdist_wheel",
-    ".tar.bz2": "sdist",
     ".tar.gz": "sdist",
     ".zip": "sdist",
 }