diff --git a/lib/v8/c.rb b/lib/v8/c.rb
index d43e2b8..287dbf3 100644
--- a/lib/v8/c.rb
+++ b/lib/v8/c.rb
@@ -1,3 +1,2 @@
 require 'v8/weak'
 require 'v8/c/maybe'
-require 'v8/c/property_attribute'
diff --git a/lib/v8/c/property_attribute.rb b/lib/v8/c/property_attribute.rb
deleted file mode 100644
index f6eb4d8..0000000
--- a/lib/v8/c/property_attribute.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-module V8
-  module C
-    module PropertyAttribute
-      None = 0
-      ReadOnly = 1 << 0
-      DontEnum = 1 << 1
-      DontDelete = 1 << 2
-    end
-    module AccessControl
-      DEFAULT = 0
-      ALL_CAN_READ = 1 << 0
-      ALL_CAN_WRITE = 1 << 1
-      PROHIBITS_OVERWRITING = 1 << 2
-    end
-  end
-end