diff --git a/nixos/tests/printing.nix b/nixos/tests/printing.nix
index 708ff539157..e8c41140045 100644
--- a/nixos/tests/printing.nix
+++ b/nixos/tests/printing.nix
@@ -34,6 +34,7 @@ import ./make-test.nix ({pkgs, ... }: {
       # Make sure that cups is up on both sides.
       $server->waitForUnit("cups.service");
       $client->waitForUnit("cups.service");
+      $client->sleep(10); # wait until cups is fully initialized
       $client->succeed("lpstat -r") =~ /scheduler is running/ or die;
       $client->succeed("lpstat -H") =~ "/var/run/cups/cups.sock" or die;
       $client->succeed("curl --fail http://localhost:631/");