diff --git a/once/install.bat b/once/install.bat
index 5553bab..16f0b31 100755
--- a/once/install.bat
+++ b/once/install.bat
@@ -19,7 +19,7 @@ echo.
 
 @pause
 
-start bin\ntctty.exe --sysroot %shell_sysroot% --exec /bin/mintty -d -h always --window max --exec /bin/bash install.sh
+start bin\ntctty.exe --sysroot %shell_sysroot% --exec /bin/mintty -d -h error --window max --exec /bin/bash install.sh
 
 popd