diff --git a/nixos/tests/slipshow.nix b/nixos/tests/slipshow.nix
index 40e0f0be620e..abbbc6361e88 100644
--- a/nixos/tests/slipshow.nix
+++ b/nixos/tests/slipshow.nix
@@ -25,11 +25,9 @@
       start_all()
 
       # it may take around a minute to compile the file and serve it
-      machine.succeed("slipshow serve /etc/slipshow/bbslides.md &>/dev/null &")
+      machine.succeed("slipshow serve -p 6000 /etc/slipshow/bbslides.md &>/dev/null &")
 
-      # slipshow serves defaultly on :8080 and unfortunately cannot
-      # be changed currently
-      machine.wait_for_open_port(8080)
-      machine.succeed("curl -i 0.0.0.0:8080")
+      machine.wait_for_open_port(6000)
+      machine.succeed("curl -i 0.0.0.0:6000")
     '';
 }