diff --git a/src/bindings/ruby/Gemfile b/src/bindings/ruby/Gemfile
index 6f6178d..96ca089 100644
--- a/src/bindings/ruby/Gemfile
+++ b/src/bindings/ruby/Gemfile
@@ -3,6 +3,7 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'rake'
+gem 'rake-compiler'
 
 group :test do
   # ...