diff --git a/.github/workflows/nix_macos_x86_64.yml b/.github/workflows/nix_macos_x86_64.yml
index 0aef9e78c1..7c9e43aa28 100644
--- a/.github/workflows/nix_macos_x86_64.yml
+++ b/.github/workflows/nix_macos_x86_64.yml
@@ -22,9 +22,6 @@ jobs:
 
       - uses: cachix/install-nix-action@v22
 
-      - name: test building default.nix
-        run: nix-build
-
       - name: execute cli_run tests only, the full tests take too long but are run nightly
         run: nix develop -c cargo test --locked --release -p roc_cli
 
diff --git a/default.nix b/default.nix
index e9d2935fc6..32df0bd147 100644
--- a/default.nix
+++ b/default.nix
@@ -38,9 +38,6 @@ in
 
     src = pkgs.nix-gitignore.gitignoreSource [ ] ./.;
 
-    # faster linking with lld
-    RUSTFLAGS = "-C link-arg=-fuse-ld=lld";
-
     cargoLock = {
       lockFile = ./Cargo.lock;
       outputHashes = {