diff --git a/ChangeLog b/ChangeLog
index 434df4ed63..8a9c7778f2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sat Aug 28 08:11:05 2010  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pathname/pathname.c (path_chardev_p): Pathname#chardev?
+	  translated from pathname.rb.
+
 Sat Aug 28 17:39:33 2010  Kenta Murata  <mrkn@mrkn.jp>
 
 	* ext/bigdecimal/bigdecimal.c (BigDecimal_save_exception_mode,
diff --git a/ext/pathname/lib/pathname.rb b/ext/pathname/lib/pathname.rb
index f55ec1938a..4615ebc6b1 100644
--- a/ext/pathname/lib/pathname.rb
+++ b/ext/pathname/lib/pathname.rb
@@ -486,9 +486,6 @@ end
 
 class Pathname    # * FileTest *
 
-  # See <tt>FileTest.chardev?</tt>.
-  def chardev?() FileTest.chardev?(@path) end
-
   # See <tt>FileTest.executable?</tt>.
   def executable?() FileTest.executable?(@path) end
 
diff --git a/ext/pathname/pathname.c b/ext/pathname/pathname.c
index 68ff682b2e..ef18de7cd6 100644
--- a/ext/pathname/pathname.c
+++ b/ext/pathname/pathname.c
@@ -606,6 +606,15 @@ path_blockdev_p(VALUE self)
     return rb_funcall(rb_mFileTest, rb_intern("blockdev?"), 1, get_strpath(self));
 }
 
+/*
+ * See <tt>FileTest.chardev?</tt>.
+ */
+static VALUE
+path_chardev_p(VALUE self)
+{
+    return rb_funcall(rb_mFileTest, rb_intern("chardev?"), 1, get_strpath(self));
+}
+
 /*
  * == Pathname
  *
@@ -836,4 +845,5 @@ Init_pathname()
     rb_define_method(rb_cPathname, "expand_path", path_expand_path, -1);
     rb_define_method(rb_cPathname, "split", path_split, 0);
     rb_define_method(rb_cPathname, "blockdev?", path_blockdev_p, 0);
+    rb_define_method(rb_cPathname, "chardev?", path_chardev_p, 0);
 }