1 files changed, 1 insertions, 0 deletions
diff --git a/dir.c b/dir.c
index 22d3400fe4..f6ff142b99 100644
--- a/dir.c
+++ b/dir.c
@@ -1896,6 +1896,7 @@ Init_Dir(void)
 
     rb_define_singleton_method(rb_cDir,"glob", dir_s_glob, -1);
     rb_define_singleton_method(rb_cDir,"[]", dir_s_aref, -1);
+    rb_define_singleton_method(rb_cDir,"exist?", rb_file_directory_p, 1); /* in file.c */
 
     rb_define_singleton_method(rb_cFile,"fnmatch", file_s_fnmatch, -1);
     rb_define_singleton_method(rb_cFile,"fnmatch?", file_s_fnmatch, -1);