From 55cc1eb8b098283cd280cf91974890fadcf808f4 Mon Sep 17 00:00:00 2001
From: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Date: Tue, 20 Jul 2021 13:08:15 +0800
Subject: [PATCH] Check `tap_audit_exception` only if tap is present

---
 Library/Homebrew/formula_cellar_checks.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/formula_cellar_checks.rb b/Library/Homebrew/formula_cellar_checks.rb
index 16f69fbbc0..080adbbe5b 100644
--- a/Library/Homebrew/formula_cellar_checks.rb
+++ b/Library/Homebrew/formula_cellar_checks.rb
@@ -330,7 +330,8 @@ module FormulaCellarChecks
     end
     mismatches -= compatible_universal_binaries
 
-    universal_binaries_expected = tap_audit_exception(:universal_binary_allowlist, formula.name)
+    universal_binaries_expected =
+      formula.tap.present? && tap_audit_exception(:universal_binary_allowlist, formula.name)
     return if mismatches.empty? && universal_binaries_expected
 
     s = ""