diff --git a/.github/workflows/binaries.yml b/.github/workflows/binaries.yml
index a0d05dde240..04d7569c2a8 100644
--- a/.github/workflows/binaries.yml
+++ b/.github/workflows/binaries.yml
@@ -26,7 +26,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v22
-      - run: nix build ${{ installable }}
+      - run: nix build ${{ matrix.installable }}
       - uses: actions/upload-artifact@v4
         with:
           path: result/bin/dune