diff --git a/Marlin/src/core/boards.h b/Marlin/src/core/boards.h
index e115903342..1854e42ec2 100644
--- a/Marlin/src/core/boards.h
+++ b/Marlin/src/core/boards.h
@@ -325,7 +325,6 @@
 #define BOARD_CREALITY_V427           4036  // Creality v4.2.7 (STM32F103RE)
 #define BOARD_TRIGORILLA_PRO          4037  // Trigorilla Pro (STM32F103ZET6)
 #define BOARD_FLY_MINI                4038  // FLY MINI (STM32F103RCT6)
-#define BOARD_FLSUN_HISPEED           4039  // FLSUN HiSpeedV1 (STM32F103VET6)
 
 //
 // ARM Cortex-M4F