diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b4324ec..f207039 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,7 +13,7 @@ jobs:
     - name: Setup Visual Studio
       uses: ilammy/msvc-dev-cmd@v1
       with:
-        arch: x64
+        arch: x86
 
     - name: Build DLL
       run: cl.exe /nologo /std:c11 /O2 /LD /DNDEBUG prof.c ws2_32.lib /Fe:prof.dll