diff --git a/nixos/tests/lsd.nix b/nixos/tests/lsd.nix
index fee8e95e14f..e7525c97e32 100644
--- a/nixos/tests/lsd.nix
+++ b/nixos/tests/lsd.nix
@@ -6,7 +6,7 @@ import ./make-test-python.nix ({ pkgs, ... }: {
 
   testScript = ''
     lsd.succeed('echo "abc" > /tmp/foo')
-    assert "4 B /tmp/foo" in lsd.succeed('lsd --classic --blocks "size,name" /tmp/foo')
+    assert "4 B /tmp/foo" in lsd.succeed('lsd --classic --blocks "size,name" -l /tmp/foo')
     assert "lsd ${pkgs.lsd.version}" in lsd.succeed("lsd --version")
   '';
 })