diff --git a/package/ci/appveyor-desktop-mingw.bat b/package/ci/appveyor-desktop-mingw.bat
index e97ffe66a..9c7c88949 100644
--- a/package/ci/appveyor-desktop-mingw.bat
+++ b/package/ci/appveyor-desktop-mingw.bat
@@ -37,8 +37,8 @@ cmake .. ^
     -DBUILD_TESTS=ON ^
     -DBUILD_GL_TESTS=ON ^
     -G "MinGW Makefiles" || exit /b
-cmake --build . || exit /b
-cmake --build . --target install || exit /b
+cmake --build . -- -j || exit /b
+cmake --build . --target install -- -j || exit /b
 
 rem Test
 ctest -V -E GLTest || exit /b