diff --git a/tests/system-test/test-all.bat b/tests/system-test/test-all.bat
index 832fde7ed0..819de3d87e 100644
--- a/tests/system-test/test-all.bat
+++ b/tests/system-test/test-all.bat
@@ -2,7 +2,7 @@
 SETLOCAL EnableDelayedExpansion
 for /F "tokens=1,2 delims=#" %%a in ('"prompt #$H#$E# & echo on & for %%b in (1) do     rem"') do (  set "DEL=%%a")
 set /a a=0
-if "%1" == "full" (
+if %1 == full (
     echo Windows Taosd Full Test
     set /a exitNum=0
     for /F "usebackq tokens=*" %%i in (fulltest.bat) do (