1 files changed, 5 insertions, 0 deletions
diff --git a/format.c b/format.c
index 6dfec4b7..b9f89bb5 100644
--- a/format.c
+++ b/format.c
@@ -2197,6 +2197,11 @@ format_defaults_winlink(struct format_tree *ft, struct winlink *wl)
 	format_add(ft, "window_end_flag", "%d",
 	    !!(wl == RB_MAX(winlinks, &s->windows)));
 
+	if (server_check_marked() && marked_pane.wl == wl)
+	    format_add(ft, "window_marked_flag", "1");
+	else
+	    format_add(ft, "window_marked_flag", "0");
+
 	format_add(ft, "window_bell_flag", "%d",
 	    !!(wl->flags & WINLINK_BELL));
 	format_add(ft, "window_activity_flag", "%d",