diff --git a/vagrant.gemspec b/vagrant.gemspec
index 078add344..afd59e075 100644
--- a/vagrant.gemspec
+++ b/vagrant.gemspec
@@ -8,6 +8,7 @@ Gem::Specification.new do |s|
   s.authors       = ["Mitchell Hashimoto", "John Bender"]
   s.email         = ["mitchell.hashimoto@gmail.com", "john.m.bender@gmail.com"]
   s.homepage      = "http://vagrantup.com"
+  s.license       = 'MIT'
   s.summary       = "Build and distribute virtualized development environments."
   s.description   = "Vagrant is a tool for building and distributing virtualized development environments."