diff --git a/src/lib.rs b/src/lib.rs
index 3dfc5e8..a197860 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -458,7 +458,11 @@ impl<'a, 'evl> Strategy<'evl> for NonBlocking<'a> {
         event_listener: &mut Option<L>,
         context: &mut Self::Context,
     ) -> Poll<T> {
-        Pin::new(event_listener.as_mut().expect("`event_listener` should never be `None`")).poll(context)
+        let poll = Pin::new(event_listener.as_mut().expect("`event_listener` should never be `None`")).poll(context);
+        if poll.is_ready() {
+            *event_listener = None;
+        }
+        poll
     }
 }