diff --git a/build.bat b/build.bat
index d85cf694b..fed948430 100644
--- a/build.bat
+++ b/build.bat
@@ -200,7 +200,8 @@ cmake --build %build_dir% --config %build_config% --target install
 if errorlevel 1 goto error
 
 if "%build_test%" == "ON" (
-  ctest --test-dir %build_dir% -C %build_config%  --output-on-failure
+  copy /y dist\lib\rime.dll %build_dir%\test
+  ctest --test-dir %build_dir%\test -C %build_config%  --output-on-failure
   if errorlevel 1 goto error
 )