1 files changed, 1 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index 375fcaf76ce..a5dccd2ef24 100644
--- a/Gemfile
+++ b/Gemfile
@@ -130,6 +130,7 @@ gem 'org-ruby', '~> 0.9.12'
 gem 'creole', '~> 0.5.0'
 gem 'wikicloth', '0.8.1'
 gem 'asciidoctor', '~> 1.5.8'
+gem 'asciidoctor-include-ext', '~> 0.3.1', require: false
 gem 'asciidoctor-plantuml', '0.0.8'
 gem 'rouge', '~> 3.1'
 gem 'truncato', '~> 0.7.11'