diff --git a/src/metapensiero/signal/utils.py b/src/metapensiero/signal/utils.py
index <HASH>..<HASH> 100644
--- a/src/metapensiero/signal/utils.py
+++ b/src/metapensiero/signal/utils.py
@@ -50,6 +50,7 @@ class MultipleResults(Awaitable):
                     res = await coro
                     self._results[ix] = res
         self.results = tuple(self._results)
+        del self._results
         self.done = True
         return self.results
Remove _results when they aren't needed anymore