diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cc68a0b..444870f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -164,6 +164,7 @@ jobs:
         GITHUB_TOKEN_READONLY: ${{ secrets.GITHUBTOKENREADONLY }}
         GITHUB_RUN_NAME: ${{ matrix.name }}
       run: |
+        $env:VCPKG_ROOT=''
         $BUILD_ROOT='C:\'
         $MSYS2_ROOT=(msys2 -c 'cygpath -w /')
         python -u autobuild.py build ${{ matrix.build-args }} "$MSYS2_ROOT" "$BUILD_ROOT"