diff --git a/Formula/pdftoipe.rb b/Formula/pdftoipe.rb
index 07c214d0a5..e09f49baa9 100644
--- a/Formula/pdftoipe.rb
+++ b/Formula/pdftoipe.rb
@@ -3,6 +3,7 @@ class Pdftoipe < Formula
   homepage "https://github.com/otfried/ipe-tools"
   url "https://github.com/otfried/ipe-tools/archive/v7.2.7.tar.gz"
   sha256 "889cb31bd8769ba111f541ba795cf53fad474aeeafbc87b7cd37c8a24b2dc6f6"
+  revision 1
 
   bottle do
     cellar :any