diff --git a/Marlin/src/feature/mmu3/mmu2_reporting.cpp b/Marlin/src/feature/mmu3/mmu2_reporting.cpp
index 3fa2fa53e137f..154d78dbf3b6f 100644
--- a/Marlin/src/feature/mmu3/mmu2_reporting.cpp
+++ b/Marlin/src/feature/mmu3/mmu2_reporting.cpp
@@ -24,7 +24,9 @@
  * mmu2_reporting.cpp
  */
 
-#include <avr/pgmspace.h>
+#ifdef __AVR__
+  #include <avr/pgmspace.h>
+#endif
 
 #include "src/MarlinCore.h"
 #if HAS_PRUSA_MMU3
@@ -49,11 +51,6 @@
   #include "ultralcd.h"
   #include "sound.h"
 
-  #ifndef HAS_WIRED_LCD
-    #define LCD_WIDTH 21
-  #endif
-
-
   namespace MMU2 {
 
   OperationStatistics operation_statistics;