diff --git a/linguist.gemspec b/linguist.gemspec
index 2438c3af..fd5dd1e6 100644
--- a/linguist.gemspec
+++ b/linguist.gemspec
@@ -3,5 +3,6 @@ Gem::Specification.new do |s|
   s.version = '0.0.1'
   s.summary = "GitHub Language detection"
 
-  s.add_dependency 'mime-types', '1.15'
+  s.add_dependency 'escape_utils', '0.2.3'
+  s.add_dependency 'mime-types',   '1.15'
 end