diff --git a/src/reactor/interval.rs b/src/reactor/interval.rs
index bf766b9a7..647ea45bf 100644
--- a/src/reactor/interval.rs
+++ b/src/reactor/interval.rs
@@ -68,7 +68,7 @@ impl Interval {
/// otherwise functions as this future's `poll` function. This will block a
/// task if one isn't already blocked or update a previous one if already
/// blocked.
- pub fn poll_at(&mut self, now: Instant) -> Poll