diff --git a/src/algorithm/neighbour/cover_tree.rs b/src/algorithm/neighbour/cover_tree.rs
index e329220..53ae286 100644
--- a/src/algorithm/neighbour/cover_tree.rs
+++ b/src/algorithm/neighbour/cover_tree.rs
@@ -179,7 +179,10 @@ impl<T: Debug + PartialEq, F: RealNumber, D: Distance<T, F>> CoverTree<T, F, D>
                 }
             }
         }
-
+        
+        if neighbors.len() > k {
+            neighbors.sort_by(|a, b| a.1.partial_cmp(&b.1).unwrap());
+        }
         Ok(neighbors.into_iter().take(k).collect())
     }