diff --git a/haml.gemspec b/haml.gemspec
index 1da6cd3c..70cd9301 100644
--- a/haml.gemspec
+++ b/haml.gemspec
@@ -15,6 +15,7 @@ Gem::Specification.new do |spec|
   spec.homepage    = 'http://haml.info/'
   spec.has_rdoc    = false
   spec.test_files  = Dir["test/**/*_test.rb"]
+  spec.license     = "MIT"
 
   spec.add_dependency "tilt"