diff --git a/src/js/data-structures/circular-linked-list.js b/src/js/data-structures/circular-linked-list.js
index 4209087a..865fcb70 100644
--- a/src/js/data-structures/circular-linked-list.js
+++ b/src/js/data-structures/circular-linked-list.js
@@ -32,7 +32,7 @@ export default class CircularLinkedList extends LinkedList {
           node.next = this.head;
         } else {
           node.next = current;
-          current = this.getElementAt(this.size());
+          current = this.getElementAt(this.size() - 1);
           // update last element
           this.head = node;
           current.next = this.head;
diff --git a/src/ts/data-structures/circular-linked-list.ts b/src/ts/data-structures/circular-linked-list.ts
index f422d276..802f6138 100644
--- a/src/ts/data-structures/circular-linked-list.ts
+++ b/src/ts/data-structures/circular-linked-list.ts
@@ -36,7 +36,7 @@ export default class CircularLinkedList<T> extends LinkedList<T> {
           node.next = this.head;
         } else {
           node.next = current;
-          current = this.getElementAt(this.size());
+          current = this.getElementAt(this.size() - 1);
           // update last element
           this.head = node;
           current.next = this.head;