diff --git a/tests/extmod/uasyncio_fair.py b/tests/extmod/uasyncio_fair.py
index e0ee811a9b..e225706054 100644
--- a/tests/extmod/uasyncio_fair.py
+++ b/tests/extmod/uasyncio_fair.py
@@ -21,12 +21,13 @@ async def task(id, t):
 async def main():
     t1 = asyncio.create_task(task(1, -0.01))
     t2 = asyncio.create_task(task(2, 0.1))
-    t3 = asyncio.create_task(task(3, 0.2))
-    t3 = asyncio.create_task(task(4, -100))
+    t3 = asyncio.create_task(task(3, 0.18))
+    t4 = asyncio.create_task(task(4, -100))
     await asyncio.sleep(0.5)
     t1.cancel()
     t2.cancel()
     t3.cancel()
+    t4.cancel()
     print("finish")