diff --git a/SampleSrc/Upload.bat b/SampleSrc/Upload.bat
index a187e2e..3f6cd14 100644
--- a/SampleSrc/Upload.bat
+++ b/SampleSrc/Upload.bat
@@ -2,8 +2,17 @@
 cd TestBuild
 
 %homedrive%%homepath%\bin\arduino-cli compile --fqbn esp32:esp32:m5stick-c --export-binaries TestBuild.ino
-if defined %2 %homedrive%%homepath%\bin\arduino-cli upload --fqbn esp32:esp32:m5stick-c -p %2 .
+
+@if %ERRORLEVEL% equ 0 (
+  %homedrive%%homepath%\bin\arduino-cli upload --fqbn esp32:esp32:m5stick-c -p %2 .
+  @if %ERRORLEVEL% equ 0 (
+    cd ..
+    exit
+  )
+) else (
+  echo Build error
+)
 
 cd ..
 
-echo ���̃E�B���h�E��‚���ƁA�V���A���|�[�g�̃��j�^��ʂ�\�����܂��B
+@echo ���̃E�B���h�E��‚���ƁA�V���A���|�[�g�̃��j�^��ʂ�\�����܂��B