diff --git a/Formula/ghc.rb b/Formula/ghc.rb
index 1b7ef223b3fc9..4af38a5dd9269 100644
--- a/Formula/ghc.rb
+++ b/Formula/ghc.rb
@@ -8,6 +8,7 @@ class Ghc < Formula
   url "https://downloads.haskell.org/~ghc/8.10.1/ghc-8.10.1-src.tar.xz"
   sha256 "4e3b07f83a266b3198310f19f71e371ebce97c769b14f0d688f4cbf2a2a1edf5"
   license "BSD-3-Clause"
+  revision 1
 
   bottle do
     sha256 "0771a43a5fd75ac8f3814367e0b99b27881b6730ced580eca109516aa250be4a" => :catalina
@@ -123,6 +124,7 @@ def install
 
     ENV.deparallelize { system "make", "install" }
     Dir.glob(lib/"*/package.conf.d/package.cache") { |f| rm f }
+    Dir.glob(lib/"*/package.conf.d/package.cache.lock") { |f| rm f }
   end
 
   def post_install