diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 83bd4a7..00e4e09 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -125,7 +125,7 @@ jobs:
 
     - uses: pypa/cibuildwheel@v2.20
       env:
-        CIBW_BUILD: ${{ matrix.os }}
+        CIBW_BUILD: ${{ matrix.build }}
         CIBW_ARCHS: ${{ matrix.arch }}
 
     - name: Verify clean directory