diff --git a/src/bin/p03.rs b/src/bin/p03.rs
index 641c693..8865545 100644
--- a/src/bin/p03.rs
+++ b/src/bin/p03.rs
@@ -67,7 +67,7 @@ fn part2(lines: &[String]) {
 
         let outlier = chunk[GROUP_SIZE - 1]
             .chars()
-            .find(|c| sets[0..GROUP_SIZE - 1].into_iter().all(|s| s.contains(&c)))
+            .find(|c| sets[0..GROUP_SIZE - 1].iter().all(|s| s.contains(c)))
             .expect("Expect at least one outlier");
 
         let priority = to_priority(outlier).unwrap();