diff --git a/ChangeLog b/ChangeLog
index 886a84fbc1..8124f3bad9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Feb 20 10:04:22 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (open_key_args): set arg->io even if no options passed.
+	  [ruby-dev:33072]
+
 Tue Feb 19 21:11:49 2008  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* string.c (rb_enc_strlen_cr): get length with coderange scan.
diff --git a/bootstraptest/test_knownbug.rb b/bootstraptest/test_knownbug.rb
index 62c0de57fe..7a697c76b8 100644
--- a/bootstraptest/test_knownbug.rb
+++ b/bootstraptest/test_knownbug.rb
@@ -46,10 +46,6 @@ assert_equal 'ok', %q{
 
 assert_valid_syntax('1.times {|i|print (42),1;}', '[ruby-list:44479]')
 
-assert_normal_exit %q{
-  File.read("empty", nil, nil, {})
-}, '[ruby-dev:33072]'
-
 assert_normal_exit %q{
   "abc".gsub(/./, "a" => "z")
 }
diff --git a/io.c b/io.c
index d8e518fa87..1b98b6ae0d 100644
--- a/io.c
+++ b/io.c
@@ -5851,7 +5851,7 @@ open_key_args(int argc, VALUE *argv, struct foreach_arg *arg)
 	rb_ary_push(args, argv[0]);
 	rb_ary_concat(args, v);
 	MEMCPY(RARRAY_PTR(args)+1, RARRAY_PTR(v), VALUE, RARRAY_LEN(v));
-	
+
 	arg->io = rb_f_open(RARRAY_LEN(args), RARRAY_PTR(args));
 	return;
     }
@@ -5863,13 +5863,14 @@ open_key_args(int argc, VALUE *argv, struct foreach_arg *arg)
 	args[1] = v;
 	arg->io = rb_f_open(2, args);
     }
+
+    if (!arg->io) {
+	arg->io = rb_io_open(RSTRING_PTR(argv[0]), "r");
+    }
+
     v = rb_hash_aref(opt, encoding);
     if (!NIL_P(v)) {
 	rb_io_t *fptr;
-
-	if (!arg->io) {
-	    arg->io = rb_io_open(RSTRING_PTR(argv[0]), "r");
-	}
 	GetOpenFile(arg->io, fptr);
         mode_enc(fptr, StringValueCStr(v));
     }
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 3381cda8db..ae26609a21 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -55,4 +55,10 @@ class TestIO < Test::Unit::TestCase
   ensure
     r.close
   end
+
+  def test_rubydev33072
+    assert_raise(Errno::ENOENT, "[ruby-dev:33072]") do
+      File.read("empty", nil, nil, {})
+    end
+  end
 end
diff --git a/version.h b/version.h
index 1958ef04b5..f1613d5e85 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2008-02-19"
+#define RUBY_RELEASE_DATE "2008-02-20"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20080219
+#define RUBY_RELEASE_CODE 20080220
 #define RUBY_PATCHLEVEL 0
 
 #define RUBY_VERSION_MAJOR 1
@@ -9,7 +9,7 @@
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_YEAR 2008
 #define RUBY_RELEASE_MONTH 2
-#define RUBY_RELEASE_DAY 19
+#define RUBY_RELEASE_DAY 20
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];