diff --git a/Formula/pypy.rb b/Formula/pypy.rb
index 4bc412a9e0..c2088a3a9f 100644
--- a/Formula/pypy.rb
+++ b/Formula/pypy.rb
@@ -1,10 +1,22 @@
 class Pypy < Formula
   desc "Highly performant implementation of Python 2 in Python"
   homepage "http://pypy.org/"
-  url "https://bitbucket.org/pypy/pypy/downloads/pypy2-v5.4.1-src.tar.bz2"
-  sha256 "45dbc50c81498f6f1067201b8fc887074b43b84ee32cc47f15e7db17571e9352"
   head "https://bitbucket.org/pypy/pypy", :using => :hg
 
+  stable do
+    url "https://bitbucket.org/pypy/pypy/downloads/pypy2-v5.4.1-src.tar.bz2"
+    sha256 "45dbc50c81498f6f1067201b8fc887074b43b84ee32cc47f15e7db17571e9352"
+
+    patch do
+      # patch for Xcode 8 clock_gettime issue
+      # remove when next release is out
+      # https://bitbucket.org/pypy/pypy/issues/2407/#comment-31210382
+      # https://bitbucket.org/pypy/pypy/commits/91b44e61f628
+      url "https://raw.githubusercontent.com/Homebrew/formula-patches/05b5cf6/pypy/patch-clock_gettime.diff"
+      sha256 "f9ae7918620740238e404e73007da06cb9bf16c21ed698f91e02432086ec4432"
+    end
+  end
+
   bottle do
     cellar :any
     sha256 "ea22b917547f7187cb4180e06e10cc5d9367b8901aad8aaa2762020a50a25513" => :el_capitan