diff --git a/libafl_cc/src/cfg.rs b/libafl_cc/src/cfg.rs
index 0551bb8b97..8e53ced783 100644
--- a/libafl_cc/src/cfg.rs
+++ b/libafl_cc/src/cfg.rs
@@ -316,8 +316,7 @@ where
                         self.get_edge(*successor).expect("unknown successor added");
                     let new_distance = distance + successor_info.get_weight();
                     let is_shorter = distances
-                        .get(successor)
-                        .map_or(true, |&current| new_distance < current);
+                        .get(successor).is_none_or(|&current| new_distance < current);
 
                     if is_shorter {
                         distances.insert(*successor, new_distance);