diff --git a/format.c b/format.c
index 400e4320..ed3c2037 100644
--- a/format.c
+++ b/format.c
@@ -494,7 +494,10 @@ format_winlink(struct format_tree *ft, struct session *s, struct winlink *wl)
 	    !!(wl->flags & WINLINK_ACTIVITY));
 	format_add(ft, "window_silence_flag", "%u",
 	    !!(wl->flags & WINLINK_SILENCE));
-
+	format_add(ft, "window_last_flag", "%u",
+	    !!(wl == TAILQ_FIRST(&s->lastw)));
+	format_add(ft, "window_zoomed_flag", "%u",
+	    !!(wl->flags & WINDOW_ZOOMED));
 
 	free(flags);
 }
diff --git a/tmux.1 b/tmux.1
index e2ff7fc0..4e86e9c1 100644
--- a/tmux.1
+++ b/tmux.1
@@ -3132,11 +3132,13 @@ The following variables are available, where appropriate:
 .It Li "window_height" Ta "" Ta "Height of window"
 .It Li "window_id" Ta "" Ta "Unique window ID"
 .It Li "window_index" Ta "#I" Ta "Index of window"
+.It Li "window_last_flag" Ta "" Ta "1 if window is the last used"
 .It Li "window_layout" Ta "" Ta "Window layout description"
 .It Li "window_name" Ta "#W" Ta "Name of window"
 .It Li "window_panes" Ta "" Ta "Number of panes in window"
 .It Li "window_silence_flag" Ta "" Ta "1 if window has silence alert"
 .It Li "window_width" Ta "" Ta "Width of window"
+.It Li "window_zoomed_flag" Ta "" Ta "1 if window is zoomed"
 .It Li "wrap_flag" Ta "" Ta "Pane wrap flag"
 .El
 .Sh NAMES AND TITLES