diff --git a/kitty/child-monitor.c b/kitty/child-monitor.c
index bd9fc0f27..9ccbd85a1 100644
--- a/kitty/child-monitor.c
+++ b/kitty/child-monitor.c
@@ -793,12 +793,13 @@ render_prepared_os_window(OSWindow *os_window, unsigned int active_window_id, co
     draw_borders(br->vao_idx, br->num_border_rects, br->rect_buf, br->is_dirty, os_window->viewport_width, os_window->viewport_height, active_window_bg, num_visible_windows, all_windows_have_same_bg, os_window);
     br->is_dirty = false;
     if (TD.screen && os_window->num_tabs >= OPT(tab_bar_min_tabs)) draw_cells(TD.vao_idx, &TD, os_window, true, true, false, NULL);
-    bool is_single_window = tab->num_windows == 1;
+    unsigned int num_of_visible_windows = 0;
+    for (unsigned int i = 0; i < tab->num_windows; i++) { if (tab->windows[i].visible) num_of_visible_windows++; }
     for (unsigned int i = 0; i < tab->num_windows; i++) {
         Window *w = tab->windows + i;
         if (w->visible && WD.screen) {
             bool is_active_window = i == tab->active_window;
-            draw_cells(WD.vao_idx, &WD, os_window, is_active_window, false, is_single_window, w);
+            draw_cells(WD.vao_idx, &WD, os_window, is_active_window, false, num_of_visible_windows == 1, w);
             if (WD.screen->start_visual_bell_at != 0) {
                 set_maximum_wait(OPT(repaint_delay));
             }