diff --git a/ChangeLog.mips b/ChangeLog.mips
index 9d79aea6db..2779bed104 100644
--- a/ChangeLog.mips
+++ b/ChangeLog.mips
@@ -1,3 +1,9 @@
+2011-12-22  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #13538]
+	* sysdeps/unix/sysv/linux/mips/sys/epoll.h (EPOLLONESHOT)
+	(EPOLLET): Initialize with unsigned values.
+
 2011-12-19  Joseph Myers  <joseph@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/mips/Makefile ($(objpfx)syscall-%.h
diff --git a/sysdeps/unix/sysv/linux/mips/sys/epoll.h b/sysdeps/unix/sysv/linux/mips/sys/epoll.h
index 6d2ec8edf0..51a657a5b5 100644
--- a/sysdeps/unix/sysv/linux/mips/sys/epoll.h
+++ b/sysdeps/unix/sysv/linux/mips/sys/epoll.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2006, 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2006, 2007, 2008, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -65,9 +65,9 @@ enum EPOLL_EVENTS
 #define EPOLLHUP EPOLLHUP
     EPOLLRDHUP = 0x2000,
 #define EPOLLRDHUP EPOLLRDHUP
-    EPOLLONESHOT = (1 << 30),
+    EPOLLONESHOT = 1u << 30,
 #define EPOLLONESHOT EPOLLONESHOT
-    EPOLLET = (1 << 31)
+    EPOLLET = 1u << 31
 #define EPOLLET EPOLLET
   };