diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3ad98c69a2..97981b554f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -9,7 +9,8 @@ jobs:
     strategy:
       matrix:
         platform:
-        - { name: Windows, os: windows-latest }
+        - { name: Windows (x64), os: windows-latest }
+        - { name: Windows (x86), os: windows-latest, flags: -A Win32 }
         - { name: Linux,   os: ubuntu-20.04, flags: -GNinja }
         - { name: MacOS,   os: macos-latest }
     steps: