diff --git a/Marlin/SanityCheck.h b/Marlin/SanityCheck.h
index 9e8b86c1f8..7bf1d6d4a7 100644
--- a/Marlin/SanityCheck.h
+++ b/Marlin/SanityCheck.h
@@ -362,4 +362,8 @@
     #error "Z_LATE_ENABLE can't be used with COREXZ."
   #endif
 
+  #ifdef BEEPER
+    #error BEEPER has been replaced with BEEPER_PIN. Please update your pins definitions.
+  #endif
+
 #endif //SANITYCHECK_H