diff --git a/Formula/docker-clean.rb b/Formula/docker-clean.rb
index afd4404f770..73bfe480b90 100644
--- a/Formula/docker-clean.rb
+++ b/Formula/docker-clean.rb
@@ -3,6 +3,7 @@ class DockerClean < Formula
   homepage "https://github.com/ZZROTDesign/docker-clean"
   url "https://github.com/ZZROTDesign/docker-clean/archive/v2.0.4.tar.gz"
   sha256 "4b636fd7391358b60c05b65ba7e89d27eaf8dd56cc516f3c786b59cadac52740"
+  license "MIT"
 
   bottle :unneeded