diff --git a/nixos/tests/bpftune.nix b/nixos/tests/bpftune.nix
index 63fcfc8b8199..c17bbcd11092 100644
--- a/nixos/tests/bpftune.nix
+++ b/nixos/tests/bpftune.nix
@@ -7,31 +7,14 @@ import ./make-test-python.nix ({ lib, pkgs, ... }: {
   };
 
   nodes = {
-    client = { pkgs, ... }: {
+    machine = { pkgs, ... }: {
       services.bpftune.enable = true;
-
-      boot.kernel.sysctl."net.ipv4.tcp_rmem" = "4096 131072 1310720";
-
-      environment.systemPackages = [ pkgs.iperf3 ];
-    };
-
-    server = { ... }: {
-      services.iperf3 = {
-        enable = true;
-        openFirewall = true;
-      };
     };
   };
 
   testScript = ''
-    with subtest("bpftune startup"):
-      client.wait_for_unit("bpftune.service")
-      client.wait_for_console_text("bpftune works fully")
-
-    with subtest("bpftune tcp buffer size"):
-      server.wait_for_unit("iperf3.service")
-      client.succeed("iperf3 --reverse -c server")
-      client.wait_for_console_text("need to increase TCP buffer size")
+    machine.wait_for_unit("bpftune.service")
+    machine.wait_for_console_text("bpftune works")
   '';
 
 })