1 files changed, 7 insertions, 1 deletions
diff --git a/tmux.c b/tmux.c
index 3f5e6cdf..5d8bbb09 100644
--- a/tmux.c
+++ b/tmux.c
@@ -244,7 +244,7 @@ main(int argc, char **argv)
 	quiet = flags = 0;
 	label = path = NULL;
 	login_shell = (**argv == '-');
-	while ((opt = getopt(argc, argv, "28c:df:lL:qS:uUvV")) != -1) {
+	while ((opt = getopt(argc, argv, "28c:Cdf:lL:qS:uUvV")) != -1) {
 		switch (opt) {
 		case '2':
 			flags |= IDENTIFY_256COLOURS;
@@ -259,6 +259,12 @@ main(int argc, char **argv)
 				xfree(shell_cmd);
 			shell_cmd = xstrdup(optarg);
 			break;
+		case 'C':
+			if (flags & IDENTIFY_CONTROL)
+				flags |= IDENTIFY_TERMIOS;
+			else
+				flags |= IDENTIFY_CONTROL;
+			break;
 		case 'V':
 			printf("%s %s\n", __progname, VERSION);
 			exit(0);