diff --git a/squib.gemspec b/squib.gemspec
index ab094c5..4d691ae 100644
--- a/squib.gemspec
+++ b/squib.gemspec
@@ -18,6 +18,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_runtime_dependency 'cairo', '~> 1.12.9'
+  spec.add_runtime_dependency 'pango', '~> 2.2.0'
 
   spec.add_development_dependency "bundler", "~> 1.6"
   spec.add_development_dependency "rake"