diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 61e0efb..2e9a458 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -117,6 +117,7 @@ jobs:
     - uses: actions/checkout@v2
     - name: Add msbuild to PATH
       uses: microsoft/setup-msbuild@v1.0.2
+    - uses: ilammy/msvc-dev-cmd@v1
     - uses: seanmiddleditch/gha-setup-ninja@master
     - name: Build all
       run: |