diff --git a/pkgs/darwin-installer/default.nix b/pkgs/darwin-installer/default.nix
index b221cc07..fcd2a8a1 100644
--- a/pkgs/darwin-installer/default.nix
+++ b/pkgs/darwin-installer/default.nix
@@ -54,11 +54,11 @@ stdenv.mkDerivation {
         mkdir -p "$HOME/.nixpkgs"
         cp "${toString ../../modules/examples/simple.nix}" "$config"
         chmod u+w "$config"
-    fi
 
-    # Enable nix-daemon service for multi-user installs.
-    if [ ! -w /nix/var/nix/db ]; then
-        sed -i 's/# services.nix-daemon.enable/services.nix-daemon.enable/' "$config"
+        # Enable nix-daemon service for multi-user installs.
+        if [ ! -w /nix/var/nix/db ]; then
+            sed -i 's/# services.nix-daemon.enable/services.nix-daemon.enable/' "$config"
+        fi
     fi
 
     # Skip when stdin is not a tty, eg.