diff --git a/bootstrap/win/win_tools.bat b/bootstrap/win/win_tools.bat
index 4dde1f603..8cc67e44f 100644
--- a/bootstrap/win/win_tools.bat
+++ b/bootstrap/win/win_tools.bat
@@ -25,12 +25,12 @@ if "%1" == "force" (
 
 :GIT_CHECK
 :: If the batch file exists, skip the git check.
-if exist "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%" goto :SVN_CHECK
-if "%CHROME_HEADLESS%" == "1" goto :SVN_CHECK
+if exist "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%" goto :MSYS_TERM_CHECK
+if "%CHROME_HEADLESS%" == "1" goto :MSYS_TERM_CHECK
 if "%WIN_TOOLS_FORCE%" == "1" goto :GIT_INSTALL
 call git --version 2>nul 1>nul
 if errorlevel 1 goto :GIT_INSTALL
-goto :SVN_CHECK
+goto :MSYS_TERM_CHECK
 
 
 :GIT_INSTALL
@@ -54,7 +54,7 @@ call copy /y "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\ssh-keygen.bat" "%WIN_TOOLS_ROO
 :: Ensure autocrlf and filemode are set correctly.
 call "%WIN_TOOLS_ROOT_DIR%\git.bat" config --global core.autocrlf false
 call "%WIN_TOOLS_ROOT_DIR%\git.bat" config --global core.filemode false
-goto :SVN_CHECK
+goto :MSYS_TERM_CHECK
 
 
 :GIT_FAIL
@@ -66,6 +66,17 @@ set ERRORLEVEL=1
 goto :END
 
 
+:MSYS_TERM_CHECK
+:: Tweak git.bat to set TERM appropriately
+call FIND "TERM" "%WIN_TOOLS_ROOT_DIR%\git.bat" 2>nul 1>nul
+IF errorlevel 1 (
+  FINDSTR /V "git\.cmd" "%WIN_TOOLS_ROOT_DIR%\git.bat" > git.bat.new
+  echo set TERM=msys >> git.bat.new
+  FINDSTR "git\.cmd" "%WIN_TOOLS_ROOT_DIR%\git.bat" >> git.bat.new
+  MOVE /Y git.bat.new "%WIN_TOOLS_ROOT_DIR%\git.bat" >nul
+)
+
+
 :SVN_CHECK
 :: If the batch file exists, skip the svn check.
 if exist "%WIN_TOOLS_ROOT_DIR%\svn.bat" goto :PYTHON_CHECK