1 files changed, 2 insertions, 0 deletions
diff --git a/lib/erb.gemspec b/lib/erb.gemspec
index a5523b3b3c..1cace278c1 100644
--- a/lib/erb.gemspec
+++ b/lib/erb.gemspec
@@ -19,4 +19,6 @@ Gem::Specification.new do |spec|
   spec.bindir        = "libexec"
   spec.executables   = ["erb"]
   spec.require_paths = ["lib"]
+
+  spec.add_dependency "cgi"
 end