diff --git a/Marlin/src/pins/stm32/pins_BTT_SKR_MINI_E3.h b/Marlin/src/pins/stm32/pins_BTT_SKR_MINI_E3.h
index abb9e9a91..26e232703 100644
--- a/Marlin/src/pins/stm32/pins_BTT_SKR_MINI_E3.h
+++ b/Marlin/src/pins/stm32/pins_BTT_SKR_MINI_E3.h
@@ -128,6 +128,8 @@
 
   #elif ENABLED(ZONESTAR_LCD)     // ANET A8 LCD Controller - Must convert to 3.3V - CONNECTING TO 5V WILL DAMAGE THE BOARD!
 
+    #error "CAUTION! ZONESTAR_LCD requires wiring modifications. See 'pins_BTT_SKR_MINI_E3.h' for details. Comment out this line to continue."
+
     #define LCD_PINS_RS    PB9
     #define LCD_PINS_ENABLE PB6
     #define LCD_PINS_D4    PB8