From 14cba7f648f0ccd2235cbd815855abe6cb909c1a Mon Sep 17 00:00:00 2001
From: Jonathan Chang <me@jonathanchang.org>
Date: Mon, 5 Oct 2020 13:52:50 +1100
Subject: [PATCH] tab: fix nil modification time

---
 Library/Homebrew/tab.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/tab.rb b/Library/Homebrew/tab.rb
index 96386c728e..8283d08cb0 100644
--- a/Library/Homebrew/tab.rb
+++ b/Library/Homebrew/tab.rb
@@ -324,7 +324,7 @@ class Tab < OpenStruct
   end
 
   def source_modified_time
-    Time.at(super)
+    Time.at(super || 0)
   end
 
   def to_json(options = nil)