diff --git a/execjs.gemspec b/execjs.gemspec
new file mode 100644
index 0000000..a440c00
--- /dev/null
+++ b/execjs.gemspec
@@ -0,0 +1,28 @@
+Gem::Specification.new do |s|
+  s.name      = "execjs"
+  s.version   = "0.0.0"
+  s.date      = "2011-02-06"
+
+  s.homepage    = "https://github.com/sstephenson/execjs"
+  s.summary     = "Run JavaScript from Ruby"
+  s.description = <<-EOS
+    ExecJS lets you run JavaScript code from Ruby.
+  EOS
+
+  s.files = [
+    "lib/execjs",
+    "lib/execjs/external_runtime.rb",
+    "lib/execjs/runners",
+    "lib/execjs/runners/basic.js",
+    "lib/execjs/runners/node.js",
+    "lib/execjs/runtimes.rb",
+    "lib/execjs/v8_runtime.rb",
+    "lib/execjs.rb"
+  ]
+
+  s.add_development_dependency "therubyracer"
+
+  s.authors           = ["Sam Stephenson"]
+  s.email             = "sstephenson@gmail.com"
+  s.rubyforge_project = "execjs"
+end