diff --git a/src/edu/caltech/cs2/interfaces/ISet.java b/src/edu/caltech/cs2/interfaces/ISet.java
index 13c559468b86eb7335725e844fca01cb2bf93c22..c99dcdea2ad5bc57f34ef698f54ae48d2215b5da 100644
--- a/src/edu/caltech/cs2/interfaces/ISet.java
+++ b/src/edu/caltech/cs2/interfaces/ISet.java
@@ -55,6 +55,7 @@ public class ISet<E> implements Iterable<E> {
      *
      * @return an iterator over the elements in this set
      */
+    @Override
     public Iterator<E> iterator() {
         return this.internalDictionary.iterator();
     }