diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index e5e0c0f3..45bfb93c 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -84,7 +84,7 @@ jobs:
       - name: Set environment variables
         run: |
           echo "TAG=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-          echo "CONDA_FILE=$(ls dist/${{ conda-name }}.tar.bz2)" >> $GITHUB_ENV
+          echo "CONDA_FILE=$(ls dist/${{ matrix.conda-name }}.tar.bz2)" >> $GITHUB_ENV
       - uses: conda-incubator/setup-miniconda@v2
         with:
           miniconda-version: "latest"