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 e9f9d0b414..b9805f4ec3 100644
--- a/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp
+++ b/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp
@@ -76,6 +76,10 @@
   #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)
+  #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 F_CPU == 16000000
   #define CPU_ST7920_DELAY_1 DELAY_NS(0)
   #define CPU_ST7920_DELAY_2 DELAY_NS(0)