===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/input-keys.c,v
retrieving revision 1.88
retrieving revision 1.89
diff -u -r1.88 -r1.89
--- src/usr.bin/tmux/input-keys.c	2022/02/28 09:24:22	1.88
+++ src/usr.bin/tmux/input-keys.c	2022/03/01 15:20:22	1.89
@@ -1,4 +1,4 @@
-/* $OpenBSD: input-keys.c,v 1.88 2022/02/28 09:24:22 nicm Exp $ */
+/* $OpenBSD: input-keys.c,v 1.89 2022/03/01 15:20:22 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -520,7 +520,7 @@
 	}
 	outkey = (key & KEYC_MASK_KEY);
 	modifiers = (key & KEYC_MASK_MODIFIERS);
-	if (outkey < ' ') {
+	if (outkey < 32 && outkey != 9 && outkey != 13 && outkey != 27) {
 		outkey = 64 + outkey;
 		modifiers |= KEYC_CTRL;
 	}