diff --git a/nixos/modules/tests/private-storage.nix b/nixos/modules/tests/private-storage.nix
index fd1730b5eb0ef0c4e24c428e4061b69a2835fee6..f7e7ef9fa25ace1bc47506413e91d100ebd85fe4 100644
--- a/nixos/modules/tests/private-storage.nix
+++ b/nixos/modules/tests/private-storage.nix
@@ -97,7 +97,7 @@ import <nixpkgs/nixos/tests/make-test.nix> {
         $introducer->succeed(
           'set -eo pipefail; ' .
           '${run-introducer} /tmp/node.pem ${toString introducerPort} ${introducerFURL} | ' .
-          systemd-cat'
+          'systemd-cat'
         );
         # Signal success. :/
         1;