diff --git a/.github/workflows/nix-flake-check.yml b/.github/workflows/nix-flake-check.yml
index 4c685c2..1f992d0 100644
--- a/.github/workflows/nix-flake-check.yml
+++ b/.github/workflows/nix-flake-check.yml
@@ -12,4 +12,5 @@ jobs:
           install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-2.4pre20210604_8e6ee1b/install
           extra_nix_config: |
             experimental-features = nix-command flakes
-      - run: nix flake check
+      - run: nix flake check --no-build
+      - run: nix shell -c echo OK