diff --git a/maitake/src/wait/cell.rs b/maitake/src/wait/cell.rs
index 6f4bfb93..dd7834cf 100644
--- a/maitake/src/wait/cell.rs
+++ b/maitake/src/wait/cell.rs
@@ -352,7 +352,7 @@ mod tests {
         assert_eq!(tick.completed, 0);
         assert_eq!(COMPLETED.load(Ordering::Relaxed), 0);
 
-        assert_eq!(wait.wake(), true);
+        assert!(wait.wake());
         let tick = sched.tick();
         assert_eq!(tick.completed, 1);
         assert_eq!(COMPLETED.load(Ordering::Relaxed), 1);
diff --git a/maitake/src/wait/map.rs b/maitake/src/wait/map.rs
index 0ff67e33..87bb9939 100644
--- a/maitake/src/wait/map.rs
+++ b/maitake/src/wait/map.rs
@@ -705,7 +705,7 @@ impl<K: PartialEq, V> Waiter<K, V> {
         // this check will never trigger, if we are already waiting, we should
         // still be waiting.
         let mut cursor = waiters.cursor_front_mut();
-        if cursor.find(|n| &n.key == this.key).is_some() {
+        if cursor.any(|n| &n.key == this.key) {
             return duplicate();
         }