diff --git a/engine/src/flutter/bin/et.bat b/engine/src/flutter/bin/et.bat
index c813cf6d7e..57856f2e0a 100644
--- a/engine/src/flutter/bin/et.bat
+++ b/engine/src/flutter/bin/et.bat
@@ -1,40 +1,40 @@
-@ECHO off
-REM Copyright 2013 The Flutter Authors. All rights reserved.
-REM Use of this source code is governed by a BSD-style license that can be
-REM found in the LICENSE file.
-
-REM ---------------------------------- NOTE ----------------------------------
-REM
-REM Please keep the logic in this file consistent with the logic in the
-REM `et` script in the same directory to ensure that it continues to
-REM work across all platforms!
-REM
-REM --------------------------------------------------------------------------
-
-SETLOCAL ENABLEDELAYEDEXPANSION
-
-FOR %%i IN ("%~dp0..\..") DO SET SRC_DIR=%%~fi
-
-REM Test if Git is available on the Host
-where /q git || ECHO Error: Unable to find git in your PATH. && EXIT /B 1
-
-SET repo_dir=%SRC_DIR%\flutter
-SET engine_tool_dir=%repo_dir%\tools\engine_tool
-
-REM Determine which platform we are on and use the right prebuilt Dart SDK
-IF "%PROCESSOR_ARCHITECTURE%"=="AMD64" (
-    SET dart_sdk_path=%SRC_DIR%\flutter\prebuilts\windows-x64\dart-sdk
-) ELSE IF "%PROCESSOR_ARCHITECTURE%"=="ARM64" (
-    SET dart_sdk_path=%SRC_DIR%\flutter\prebuilts\windows-arm64\dart-sdk
-) ELSE (
-    ECHO "Windows x86 (32-bit) is not supported" && EXIT /B 1
-)
-
-SET dart=%dart_sdk_path%\bin\dart.exe
-
-cd "%engine_tool_dir%"
-
-REM Do not use the CALL command in the next line to execute Dart. CALL causes
-REM Windows to re-read the line from disk after the CALL command has finished
-REM regardless of the ampersand chain.
-"%dart%" bin\et.dart %* & exit /B !ERRORLEVEL!
+@ECHO off
+REM Copyright 2013 The Flutter Authors. All rights reserved.
+REM Use of this source code is governed by a BSD-style license that can be
+REM found in the LICENSE file.
+
+REM ---------------------------------- NOTE ----------------------------------
+REM
+REM Please keep the logic in this file consistent with the logic in the
+REM `et` script in the same directory to ensure that it continues to
+REM work across all platforms!
+REM
+REM --------------------------------------------------------------------------
+
+SETLOCAL ENABLEDELAYEDEXPANSION
+
+FOR %%i IN ("%~dp0..\..") DO SET SRC_DIR=%%~fi
+
+REM Test if Git is available on the Host
+where /q git || ECHO Error: Unable to find git in your PATH. && EXIT /B 1
+
+SET repo_dir=%SRC_DIR%\flutter
+SET engine_tool_dir=%repo_dir%\tools\engine_tool
+
+REM Determine which platform we are on and use the right prebuilt Dart SDK
+IF "%PROCESSOR_ARCHITECTURE%"=="AMD64" (
+    SET dart_sdk_path=%SRC_DIR%\flutter\prebuilts\windows-x64\dart-sdk
+) ELSE IF "%PROCESSOR_ARCHITECTURE%"=="ARM64" (
+    SET dart_sdk_path=%SRC_DIR%\flutter\prebuilts\windows-arm64\dart-sdk
+) ELSE (
+    ECHO "Windows x86 (32-bit) is not supported" && EXIT /B 1
+)
+
+SET dart=%dart_sdk_path%\bin\dart.exe
+
+cd "%engine_tool_dir%"
+
+REM Do not use the CALL command in the next line to execute Dart. CALL causes
+REM Windows to re-read the line from disk after the CALL command has finished
+REM regardless of the ampersand chain.
+"%dart%" bin\et.dart %* & exit /B !ERRORLEVEL!