diff --git a/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp b/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp
index b9805f4ec3..76c488fa5a 100644
--- a/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp
+++ b/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp
@@ -72,11 +72,7 @@
   #define CPU_ST7920_DELAY_1 DELAY_NS(0)
   #define CPU_ST7920_DELAY_2 DELAY_NS(0)
   #define CPU_ST7920_DELAY_3 DELAY_NS(189)
-#elif MB(REMRAM_V1)
-  #define CPU_ST7920_DELAY_1 DELAY_NS(0)
-  #define CPU_ST7920_DELAY_2 DELAY_NS(0)
-  #define CPU_ST7920_DELAY_3 DELAY_NS(0)
-#elif MB(ARMED)
+#elif defined(ARDUINO_ARCH_STM32)
   #define CPU_ST7920_DELAY_1 DELAY_NS(0)
   #define CPU_ST7920_DELAY_2 DELAY_NS(0)
   #define CPU_ST7920_DELAY_3 DELAY_NS(0)