diff --git a/Formula/apngasm.rb b/Formula/apngasm.rb
index 79e66f46fc..ced9c70a7a 100644
--- a/Formula/apngasm.rb
+++ b/Formula/apngasm.rb
@@ -8,7 +8,8 @@ class Apngasm < Formula
 
   bottle do
     cellar :any
-    revision 1
+    rebuild 1
+    sha256 "87cb9f81d1ec12b561e8750d259e27d1d97daa654742fcce032863e0185baf0f" => :sierra
     sha256 "073f74cacea8907e430113f4aae80d248887fc1d18de36f64889e683c08e3441" => :el_capitan
     sha256 "5fb1bd67761e2717c78c3842c7effd8835acb5f6193a05516df7cde7ff7051e8" => :yosemite
     sha256 "124cee4bf9746a9e60882cf6fd5b2430265fc661af5dbe9bab2f85e83e985cfa" => :mavericks