===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/names.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- src/usr.bin/tmux/names.c	2009/06/01 22:58:49	1.1
+++ src/usr.bin/tmux/names.c	2009/06/03 04:03:16	1.2
@@ -1,4 +1,4 @@
-/* $OpenBSD: names.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */
+/* $OpenBSD: names.c,v 1.2 2009/06/03 04:03:16 ray Exp $ */
 
 /*
  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -97,7 +97,7 @@
 
 	if (*name != '\0') {
 		ptr = name + strlen(name) - 1;
-		while (ptr > name && !isalnum(*ptr))
+		while (ptr > name && !isalnum((u_char)*ptr))
 			*ptr-- = '\0';
 	}