diff --git a/ChangeLog b/ChangeLog
index 8f8862805c..495b89b0c4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Jul 26 13:08:53 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/fiddle/lib/fiddle.rb: [DOC] Document Fiddle.dlopen(nil)
+	* ext/fiddle/handle.c: [DOC] Document Fiddle::Handle.new(nil)
+
 Fri Jul 26 13:04:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* load.c (rb_load_internal): use rb_load_file_str() to keep path
diff --git a/ext/fiddle/handle.c b/ext/fiddle/handle.c
index 832ff3319a..357ff0510c 100644
--- a/ext/fiddle/handle.c
+++ b/ext/fiddle/handle.c
@@ -113,10 +113,15 @@ predefined_fiddle_handle(void *handle)
 
 /*
  * call-seq:
- *    new(lib = nil, flags = Fiddle::RTLD_LAZY | Fiddle::RTLD_GLOBAL)
+ *    new(library = nil, flags = Fiddle::RTLD_LAZY | Fiddle::RTLD_GLOBAL)
+ *
+ * Create a new handler that opens +library+ with +flags+.
+ *
+ * If no +library+ is specified or +nil+ is given, RTLD_DEFAULT is used, which
+ * usually means +libc+.
+ *
+ *	libc = Fiddle::Handle.new
  *
- * Create a new handler that opens library named +lib+ with +flags+.  If no
- * library is specified, RTLD_DEFAULT is used.
  */
 static VALUE
 rb_fiddle_handle_initialize(int argc, VALUE argv[], VALUE self)
diff --git a/ext/fiddle/lib/fiddle.rb b/ext/fiddle/lib/fiddle.rb
index c8a7ef1b05..3a9b5d5bff 100644
--- a/ext/fiddle/lib/fiddle.rb
+++ b/ext/fiddle/lib/fiddle.rb
@@ -32,6 +32,11 @@ module Fiddle
   # Creates a new handler that opens +library+, and returns an instance of
   # Fiddle::Handle.
   #
+  # If +nil+ is given for the +library+, Fiddle::Handle::DEFAULT is used, which
+  # usually means +libc+.
+  #
+  #   libc = Fiddle.dlopen(nil)
+  #
   # See Fiddle::Handle.new for more.
   def dlopen library
     Fiddle::Handle.new library