diff --git a/nixos/tests/firefox.nix b/nixos/tests/firefox.nix
index d6599be13c9..ca634ffcf1e 100644
--- a/nixos/tests/firefox.nix
+++ b/nixos/tests/firefox.nix
@@ -16,6 +16,7 @@
       $machine->waitForWindow(qr/Valgrind/);
       $machine->sleep(40); # wait until Firefox has finished loading the page
       $machine->screenshot("screen");
+
     '';
 
 }