diff --git a/Marlin/src/lcd/dwin/ui_dacai.cpp b/Marlin/src/lcd/dwin/ui_dacai.cpp
index a3d49c6..d18948a 100644
--- a/Marlin/src/lcd/dwin/ui_dacai.cpp
+++ b/Marlin/src/lcd/dwin/ui_dacai.cpp
@@ -1,4 +1,4 @@
-#include <wstring.h>
+#include <WString.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/Marlin/src/lcd/dwin/ui_dacai.h b/Marlin/src/lcd/dwin/ui_dacai.h
index 90876c5..3043928 100644
--- a/Marlin/src/lcd/dwin/ui_dacai.h
+++ b/Marlin/src/lcd/dwin/ui_dacai.h
@@ -2,7 +2,7 @@
 #define UI_DACAI_H
 
 #include "string.h"
-#include <arduino.h>
+#include <Arduino.h>
 
 #include "../../inc/MarlinConfig.h"
 #include "../../module/temperature.h"