diff --git a/Library/Homebrew/cask/lib/hbc/macos.rb b/Library/Homebrew/cask/lib/hbc/macos.rb
index 5c1515d0c7..d47e04fb24 100644
--- a/Library/Homebrew/cask/lib/hbc/macos.rb
+++ b/Library/Homebrew/cask/lib/hbc/macos.rb
@@ -181,6 +181,7 @@ module OS
       "/usr/include",
       "/usr/lib",
       "/usr/libexec",
+      "/usr/libexec/cups",
       "/usr/local",
       "/usr/local/Cellar",
       "/usr/local/Frameworks",