diff --git a/Marlin/src/core/boards.h b/Marlin/src/core/boards.h
index 174ec404a796..80ba5493f46b 100644
--- a/Marlin/src/core/boards.h
+++ b/Marlin/src/core/boards.h
@@ -462,6 +462,7 @@
 #define BOARD_I3DBEEZ9_V1             5247  // I3DBEEZ9 V1 (STM32F407ZG)
 #define BOARD_MELLOW_FLY_E3_V2        5248  // Mellow Fly E3 V2 (STM32F407VG)
 #define BOARD_FYSETC_CHEETAH_V30      5249  // FYSETC Cheetah V3.0 (STM32F446RC)
+#define BOARD_MELLOW_FLY_E3_PRO_V3    5250  // Mellow Fly E3 Pro V3 (STM32F407VG)
 
 //
 // ARM Cortex-M7