diff --git a/distributed/cli/utils.py b/distributed/cli/utils.py
index e4e97aa3283..083065c52db 100644
--- a/distributed/cli/utils.py
+++ b/distributed/cli/utils.py
@@ -8,7 +8,7 @@
 logger = logging.getLogger(__name__)
 
 
-async def wait_for_signals(signals: list[signal.Signals]):
+async def wait_for_signals(signals: list[signal.Signals]) -> None:
     """Wait for the passed signals by setting global signal handlers"""
     loop = asyncio.get_running_loop()
     event = asyncio.Event()