diff --git a/Marlin/ultralcd_st7920_u8glib_rrd.h b/Marlin/ultralcd_st7920_u8glib_rrd.h
index a61294643f..b65a1655d5 100644
--- a/Marlin/ultralcd_st7920_u8glib_rrd.h
+++ b/Marlin/ultralcd_st7920_u8glib_rrd.h
@@ -53,7 +53,7 @@
   #define CPU_ST7920_DELAY_1 DELAY_NS(0)
   #define CPU_ST7920_DELAY_2 DELAY_NS(188)
   #define CPU_ST7920_DELAY_3 DELAY_NS(0)
-#elif MB(MINIRAMBO) || MB(EINSY_RAMBO)
+#elif MB(MINIRAMBO) || MB(EINSY_RAMBO) || MB(EINSY_RETRO)
   #define CPU_ST7920_DELAY_1 DELAY_NS(0)
   #define CPU_ST7920_DELAY_2 DELAY_NS(250)
   #define CPU_ST7920_DELAY_3 DELAY_NS(0)