diff --git a/content/roadmaps/101-backend/content/103-learn-a-language/107-ruby.md b/content/roadmaps/101-backend/content/103-learn-a-language/107-ruby.md
index 8c8caf6fe..5ccbc04af 100644
--- a/content/roadmaps/101-backend/content/103-learn-a-language/107-ruby.md
+++ b/content/roadmaps/101-backend/content/103-learn-a-language/107-ruby.md
@@ -6,3 +6,4 @@ Ruby is a high-level, interpreted programming language that blends Perl, Smallta
Ruby Website
Learn Ruby in 20 minutes
Learn Ruby | Codecademy
+Ruby, An Introduction to a Programmer’s Best Friend