diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 7b55f635e..4400154fc 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2012-02-07  Corinna Vinschen  <corinna@vinschen.de>
+
+	* mount.cc (mount_info::create_root_entry): Fix format specifier in
+	api_fatal message.
+
 2012-02-07  Corinna Vinschen  <corinna@vinschen.de>
 
 	* include/process.h: Move here from include/cygwin subdir.
diff --git a/winsup/cygwin/mount.cc b/winsup/cygwin/mount.cc
index 1bdd0a2e8..5724298b3 100644
--- a/winsup/cygwin/mount.cc
+++ b/winsup/cygwin/mount.cc
@@ -1,7 +1,7 @@
 /* mount.cc: mount handling.
 
    Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-   2006, 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
+   2006, 2007, 2008, 2009, 2010, 2011, 2012 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -450,7 +450,7 @@ mount_info::create_root_entry (const PWCHAR root)
   if (add_item (native_root, "/",
 		MOUNT_SYSTEM | MOUNT_BINARY | MOUNT_IMMUTABLE | MOUNT_AUTOMATIC)
       < 0)
-    api_fatal ("add_item (\"%W\", \"/\", ...) failed, errno %d", native_root, errno);
+    api_fatal ("add_item (\"%s\", \"/\", ...) failed, errno %d", native_root, errno);
   /* Create a default cygdrive entry.  Note that this is a user entry.
      This allows to override it with mount, unless the sysadmin created
      a cygdrive entry in /etc/fstab. */