From 8bd4578e443b503ab34a5447b5b0c33b20750f1e Mon Sep 17 00:00:00 2001
From: Petr Korolev <sky4winder@gmail.com>
Date: Mon, 6 Jun 2016 10:23:38 +0300
Subject: [PATCH] check that page is not nil

---
 lib/github_changelog_generator/fetcher.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/github_changelog_generator/fetcher.rb b/lib/github_changelog_generator/fetcher.rb
index f375119..4db61b9 100644
--- a/lib/github_changelog_generator/fetcher.rb
+++ b/lib/github_changelog_generator/fetcher.rb
@@ -71,7 +71,7 @@ module GitHubChangelogGenerator
       response.each_page do |page|
         page_i += PER_PAGE_NUMBER
         print_in_same_line("Fetching tags... #{page_i}/#{count_pages * PER_PAGE_NUMBER}")
-        tags.concat(page)
+        tags.concat(page) unless page.nil?
       end
       print_empty_line