diff --git a/uisimulator/sdl/lcd-remote.c b/uisimulator/sdl/lcd-remote.c
index 5ce0447601..64b641ad6d 100644
--- a/uisimulator/sdl/lcd-remote.c
+++ b/uisimulator/sdl/lcd-remote.c
@@ -52,6 +52,8 @@ void sim_remote_backlight(int value)
     } else {
         sdl_set_gradient(remote_surface, &remote_color_zero, &remote_color_max, (1<<LCD_REMOTE_DEPTH));
     }
+
+    lcd_remote_update();
 }
 
 /* initialise simulator lcd remote driver */