From 8846741ed21c5c9c19cbd62b295a8382ebd682a6 Mon Sep 17 00:00:00 2001
From: Alex Wood <awood@redhat.com>
Date: Mon, 9 Jul 2018 23:06:54 -0400
Subject: [PATCH] Fix #7082 Add call to unused method (#7122)

Merge pull request 7122
---
 lib/jekyll/commands/serve.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/jekyll/commands/serve.rb b/lib/jekyll/commands/serve.rb
index ecf6fe67..a5b58897 100644
--- a/lib/jekyll/commands/serve.rb
+++ b/lib/jekyll/commands/serve.rb
@@ -91,7 +91,10 @@ module Jekyll
         def process(opts)
           opts = configuration_from_options(opts)
           destination = opts["destination"]
-          register_reload_hooks(opts) if opts["livereload"]
+          if opts["livereload"]
+            validate_options(opts)
+            register_reload_hooks(opts)
+          end
           setup(destination)
 
           start_up_webrick(opts, destination)