===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/window-copy.c,v
retrieving revision 1.247
retrieving revision 1.248
diff -u -r1.247 -r1.248
--- src/usr.bin/tmux/window-copy.c	2020/02/24 09:53:59	1.247
+++ src/usr.bin/tmux/window-copy.c	2020/03/11 18:46:42	1.248
@@ -1,4 +1,4 @@
-/* $OpenBSD: window-copy.c,v 1.247 2020/02/24 09:53:59 nicm Exp $ */
+/* $OpenBSD: window-copy.c,v 1.248 2020/03/11 18:46:42 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -4122,7 +4122,7 @@
 	struct window_pane		*wp;
 	struct window_mode_entry	*wme;
 	struct window_copy_mode_data	*data;
-	u_int				 x, y;
+	u_int				 x, y, yg;
 
 	if (c == NULL)
 		return;
@@ -4143,6 +4143,9 @@
 	c->tty.mouse_drag_release = window_copy_drag_release;
 
 	data = wme->data;
+	yg = screen_hsize(data->backing) + y - data->oy;
+	if (x < data->selrx || x > data->endselrx || yg != data->selry)
+		data->selflag = SEL_CHAR;
 	switch (data->selflag) {
 		case SEL_WORD:
 			if (data->ws) {