diff --git a/Formula/libfixbuf.rb b/Formula/libfixbuf.rb
index fd66b8bbc5..0fac5dc6d4 100644
--- a/Formula/libfixbuf.rb
+++ b/Formula/libfixbuf.rb
@@ -3,6 +3,7 @@ class Libfixbuf < Formula
   homepage "https://tools.netsa.cert.org/fixbuf/"
   url "https://tools.netsa.cert.org/releases/libfixbuf-2.3.1.tar.gz"
   sha256 "2ba7877c5b09c120a20eb320d5d9e2ac93520c8308624eac3064aaece239bad3"
+  revision 1
 
   bottle do
     sha256 "e880e6bba9e44a26a962fc5dcec07b1b1083c23d46036f39bc330e4b75616c12" => :mojave