diff --git a/nixos/tests/plotinus.nix b/nixos/tests/plotinus.nix
index 5c52abf9c720..2bb2b705eb7e 100644
--- a/nixos/tests/plotinus.nix
+++ b/nixos/tests/plotinus.nix
@@ -2,6 +2,7 @@ import ./make-test-python.nix ({ pkgs, ... }: {
   name = "plotinus";
   meta = {
     maintainers = pkgs.plotinus.meta.maintainers;
+    timeout = 600;
   };
 
   nodes.machine =
@@ -9,20 +10,23 @@ import ./make-test-python.nix ({ pkgs, ... }: {
 
     { imports = [ ./common/x11.nix ];
       programs.plotinus.enable = true;
-      environment.systemPackages = [ pkgs.gnome-calculator pkgs.xdotool ];
+      environment.systemPackages = [
+        pkgs.gnome-pomodoro
+        pkgs.xdotool
+      ];
     };
 
   testScript = ''
     machine.wait_for_x()
-    machine.succeed("gnome-calculator >&2 &")
-    machine.wait_for_window("gnome-calculator")
+    machine.succeed("gnome-pomodoro >&2 &")
+    machine.wait_for_window("Pomodoro", timeout=120)
     machine.succeed(
-        "xdotool search --sync --onlyvisible --class gnome-calculator "
+        "xdotool search --sync --onlyvisible --class gnome-pomodoro "
         + "windowfocus --sync key --clearmodifiers --delay 1 'ctrl+shift+p'"
     )
     machine.sleep(5)  # wait for the popup
+    machine.screenshot("popup")
     machine.succeed("xdotool key --delay 100 p r e f e r e n c e s Return")
-    machine.wait_for_window("Preferences")
-    machine.screenshot("screen")
+    machine.wait_for_window("Preferences", timeout=120)
   '';
 })