diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3bdf784..4c39143 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -41,5 +41,6 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+    - uses: ilammy/msvc-dev-cmd@v1
     - name: build with nmake
       run: nmake -f Makefile.nt