diff --git a/Marlin/Marlin.h b/Marlin/Marlin.h
index 86d4bb0337da049e824d70505e0260b416e54555..b0537162ea3276eda1a1afca41dc97778a5c7194 100644
--- a/Marlin/Marlin.h
+++ b/Marlin/Marlin.h
@@ -40,7 +40,6 @@
 #include "fastio.h"
 #include "utility.h"
 #include "serial.h"
-#include "WString.h"
 
 #if ENABLED(PRINTCOUNTER)
   #include "printcounter.h"