diff --git a/ChangeLog b/ChangeLog
index 8223b7f517..4b9a7be8ff 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Mar 12 01:18:09 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_seek): use long for seekdir().
+
 Thu Mar 12 01:08:27 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* tool/ytab.sed: replaces backslashes with slash for nmake.
diff --git a/dir.c b/dir.c
index 55c675f216..9b502ef42f 100644
--- a/dir.c
+++ b/dir.c
@@ -580,7 +580,7 @@ static VALUE
 dir_seek(VALUE dir, VALUE pos)
 {
     struct dir_data *dirp;
-    off_t p = NUM2OFFT(pos);
+    long p = NUM2LONG(pos);
 
     GetDIR(dir, dirp);
 #ifdef HAVE_SEEKDIR