diff --git a/Formula/urweb.rb b/Formula/urweb.rb
index 3097017602..7f2497becf 100644
--- a/Formula/urweb.rb
+++ b/Formula/urweb.rb
@@ -4,6 +4,12 @@ class Urweb < Formula
   url "http://www.impredicative.com/ur/urweb-20160621.tgz"
   sha256 "c5e487b11d44ab9945c04c305e644215282a60fcb2776d4939d79748a1497522"
 
+  bottle do
+    sha256 "de2f38ae993329e757a3a595d4af95e13bea9c3502ebb25fb613df006dfa6a69" => :el_capitan
+    sha256 "f76d92fbe09cd5fefc6ebc2cdbe97b431c26d21a5a2eee331f0eea5cac283c81" => :yosemite
+    sha256 "71014e3a1755d68557ba8dfc2b7228dde65b00b40d505f24c000a61118f8991f" => :mavericks
+  end
+
   depends_on "autoconf" => :build
   depends_on "automake" => :build
   depends_on "libtool" => :build