diff --git a/Marlin/pins.h b/Marlin/pins.h
index 9506081efc..4afa2b6160 100644
--- a/Marlin/pins.h
+++ b/Marlin/pins.h
@@ -151,7 +151,7 @@
   #include "pins_AJ4P.h"
 #elif MB(MKS_13)
   #include "pins_MKS_13.h"
-#elif MB(BOARD_SAINSMART_2IN1)
+#elif MB(SAINSMART_2IN1)
   #include "pins_SAINSMART_2IN1.h"
 #else
   #error Unknown MOTHERBOARD value set in Configuration.h