diff --git a/electrum/interface.py b/electrum/interface.py
index 1d54be3d2..b5eac439c 100644
--- a/electrum/interface.py
+++ b/electrum/interface.py
@@ -336,7 +336,8 @@ class Interface(Logger):
                 self.logger.debug(f"(disconnect) trace for {repr(e)}", exc_info=True)
             finally:
                 await self.network.connection_down(self)
-                self.got_disconnected.set_result(1)
+                if not self.got_disconnected.done():
+                    self.got_disconnected.set_result(1)
                 # if was not 'ready' yet, schedule waiting coroutines:
                 self.ready.cancel()
         return wrapper_func