diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index a951d0856..7c1dfc921 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,9 @@
+2009-05-18  Christopher Faylor  <me+cygwin@cgf.cx>
+
+	* mount.cc (mount_info::got_usr_bin): Mark as NO_COPY.
+	(mount_info::got_usr_lib): Ditto.
+	(mount_info::root_idx): Ditto.
+
 2009-05-14  Corinna Vinschen  <corinna@vinschen.de>
 
 	* wchar.h (sys_mbstowcs): Add missing __stdcall attribute.
diff --git a/winsup/cygwin/mount.cc b/winsup/cygwin/mount.cc
index 43177eb63..f6e4bace7 100644
--- a/winsup/cygwin/mount.cc
+++ b/winsup/cygwin/mount.cc
@@ -45,9 +45,9 @@ details. */
 #define isproc(path) \
   (path_prefix_p (proc, (path), proc_len, false))
 
-bool mount_info::got_usr_bin;
-bool mount_info::got_usr_lib;
-int mount_info::root_idx = -1;
+bool NO_COPY mount_info::got_usr_bin;
+bool NO_COPY mount_info::got_usr_lib;
+int NO_COPY mount_info::root_idx = -1;
 
 /* is_unc_share: Return non-zero if PATH begins with //server/share
 		 or with one of the native prefixes //./ or //?/