diff --git a/homeassistant/components/zeroconf/__init__.py b/homeassistant/components/zeroconf/__init__.py
index ceaba3f02a1..192ba5ac97e 100644
--- a/homeassistant/components/zeroconf/__init__.py
+++ b/homeassistant/components/zeroconf/__init__.py
@@ -279,7 +279,7 @@ async def _async_register_hass_zc_service(
 class FlowDispatcher:
     """Dispatch discovery flows."""
 
-    def __init__(self, hass: HomeAssistant):
+    def __init__(self, hass: HomeAssistant) -> None:
         """Init the discovery dispatcher."""
         self.hass = hass
         self.pending_flows: list[ZeroconfFlow] = []