diff --git a/middleman-core/middleman-core.gemspec b/middleman-core/middleman-core.gemspec
index 3e06280d..dae237f7 100644
--- a/middleman-core/middleman-core.gemspec
+++ b/middleman-core/middleman-core.gemspec
@@ -36,5 +36,8 @@ Gem::Specification.new do |s|
   
   # Web Server
   s.add_dependency("thin", ["~> 1.3.1"])
+
+  # i18n, needed for Padrino helpers
+  s.add_dependency("i18n", ["~> 0.6.0"])
 end