diff --git a/ChangeLog b/ChangeLog
index a435cd52d8..07002c5c10 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Wed Jan 19 17:38:03 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (init_stdhandle): backport mistake of r29382.
+	  some code are needless in ruby 1.8.
+	  [ruby-core:34579]
+
 Sat Jan 15 06:04:00 2011  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* ext/zlib/zlib.c (gzfile_check_footer): ISIZE (Input SIZE) in gzip's
diff --git a/win32/win32.c b/win32/win32.c
index 39b11efef4..2e91a14524 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -1920,21 +1920,12 @@ init_stdhandle(void)
     if (fileno(stdin) < 0) {
 	stdin->_file = open_null(0);
     }
-    else {
-	setmode(fileno(stdin), O_BINARY);
-    }
     if (fileno(stdout) < 0) {
 	stdout->_file = open_null(1);
     }
-    else {
-	setmode(fileno(stdout), O_BINARY);
-    }
     if (fileno(stderr) < 0) {
 	stderr->_file = open_null(2);
     }
-    else {
-	setmode(fileno(stderr), O_BINARY);
-    }
     if (nullfd >= 0 && !keep) close(nullfd);
     setvbuf(stderr, NULL, _IONBF, 0);
 }