diff --git a/MANIFEST.in b/MANIFEST.in
index 746234d..bbec72a 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,2 +1,3 @@
+include LICENSE.txt
 include versioneer.py
 include pdpbox/_version.py
diff --git a/setup.cfg b/setup.cfg
index e0d0d3e..7f1e3c1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,6 @@
 [metadata]
 description-file = README.md
+license_files = LICENSE.txt
 
 [versioneer]
 VCS = git