diff --git a/src/ophyd_async/core/_device.py b/src/ophyd_async/core/_device.py
index b55541233..ae62e5b2c 100644
--- a/src/ophyd_async/core/_device.py
+++ b/src/ophyd_async/core/_device.py
@@ -129,10 +129,6 @@ async def connect(
         # Wait for it to complete
         await self._connect_task
 
-    def __hash__(self):
-        # to allow Devices to be used as dict keys
-        return hash(id(self))
-
 
 DeviceT = TypeVar("DeviceT", bound=Device)