diff --git a/ChangeLog b/ChangeLog
index ab4194d33a..cd156b0a61 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Jul 15 23:45:11 2009  Koichi Sasada  <ko1@atdot.net>
+
+	* dir.c (push_glob): fix GC problem.
+
 Wed Jul 15 17:33:52 2009  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
 
 	* ext/purelib.rb: translates a fake path to rubygems in $" into
diff --git a/dir.c b/dir.c
index 76c926478b..d438a492a5 100644
--- a/dir.c
+++ b/dir.c
@@ -1561,6 +1561,7 @@ push_glob(VALUE ary, VALUE str, int flags)
 {
     struct glob_args args;
     rb_encoding *enc = rb_enc_get(str);
+    volatile VALUE vstr = str; /* for GC mark */
 
     if (enc == rb_usascii_encoding()) enc = rb_filesystem_encoding();
     args.func = push_pattern;