===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/cmd.c,v
retrieving revision 1.131
retrieving revision 1.132
diff -u -r1.131 -r1.132
--- src/usr.bin/tmux/cmd.c	2017/01/10 11:58:30	1.131
+++ src/usr.bin/tmux/cmd.c	2017/01/10 18:10:24	1.132
@@ -1,4 +1,4 @@
-/* $OpenBSD: cmd.c,v 1.131 2017/01/10 11:58:30 nicm Exp $ */
+/* $OpenBSD: cmd.c,v 1.132 2017/01/10 18:10:24 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -690,10 +690,14 @@
 			if (quoted)
 				ptr++;
 
-			buf = xrealloc(buf, len + (strlen(s) * 2) + 1);
+			buf = xrealloc(buf, len + (strlen(s) * 3) + 1);
 			for (cp = s; *cp != '\0'; cp++) {
 				if (quoted && strchr(quote, *cp) != NULL)
 					buf[len++] = '\\';
+				if (quoted && *cp == ';') {
+					buf[len++] = '\\';
+					buf[len++] = '\\';
+				}
 				buf[len++] = *cp;
 			}
 			buf[len] = '\0';