diff --git a/src/sakia/tests/unit/tools/test_decorators.py b/src/sakia/tests/unit/tools/test_decorators.py
index 6383a14a..60a5eb33 100644
--- a/src/sakia/tests/unit/tools/test_decorators.py
+++ b/src/sakia/tests/unit/tools/test_decorators.py
@@ -105,7 +105,7 @@ async def exec_test():
         self.lp.call_soon(lambda: task_runner.some_long_task("B", incrementer))
         self.lp.call_later(1.5, lambda: task_runner.cancel_long_task())
         self.lp.call_later(2, lambda: task_runner.some_long_task("C", incrementer))
-        self.lp.call_later(2, lambda: task_runner.some_long_task("D", incrementer))
+        self.lp.call_later(2.1, lambda: task_runner.some_long_task("D", incrementer))
         self.lp.call_later(3.5, lambda: task_runner.cancel_long_task())
         self.lp.run_until_complete(exec_test())
         self.assertEqual(calls["A"], 0)