2 files changed, 10 insertions, 3 deletions
diff --git a/ext/pathname/lib/pathname.rb b/ext/pathname/lib/pathname.rb
index dceb327492..5fbe76affd 100644
--- a/ext/pathname/lib/pathname.rb
+++ b/ext/pathname/lib/pathname.rb
@@ -486,9 +486,6 @@ end
 
 class Pathname    # * FileTest *
 
-  # See <tt>FileTest.directory?</tt>.
-  def directory?() FileTest.directory?(@path) end
-
   # See <tt>FileTest.file?</tt>.
   def file?() FileTest.file?(@path) end
 
diff --git a/ext/pathname/pathname.c b/ext/pathname/pathname.c
index 96b7970d8e..a19cc9eb68 100644
--- a/ext/pathname/pathname.c
+++ b/ext/pathname/pathname.c
@@ -652,6 +652,15 @@ path_grpowned_p(VALUE self)
 }
 
 /*
+ * See <tt>FileTest.directory?</tt>.
+ */
+static VALUE
+path_directory_p(VALUE self)
+{
+    return rb_funcall(rb_mFileTest, rb_intern("directory?"), 1, get_strpath(self));
+}
+
+/*
  * == Pathname
  *
  * Pathname represents a pathname which locates a file in a filesystem.
@@ -886,4 +895,5 @@ Init_pathname()
     rb_define_method(rb_cPathname, "executable_real?", path_executable_real_p, 0);
     rb_define_method(rb_cPathname, "exist?", path_exist_p, 0);
     rb_define_method(rb_cPathname, "grpowned?", path_grpowned_p, 0);
+    rb_define_method(rb_cPathname, "directory?", path_directory_p, 0);
 }