diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/DefaultDocumentTreeNode.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/DefaultDocumentTreeNode.java
index 5623185..0f5d66a 100644
--- a/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/DefaultDocumentTreeNode.java
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/DefaultDocumentTreeNode.java
@@ -94,7 +94,7 @@
      * @param newValue new value to set
      * @param newVersion new version to set
      * @return previous value; can be {@code null} if no child currently exists with that relative path name.
-     * a non null return value indicates child already exists and no modification occured.
+     * a non null return value indicates child already exists and no modification occurred.
      */
     public Versioned<V> addChild(String name, V newValue, long newVersion) {
         DefaultDocumentTreeNode<V> child = (DefaultDocumentTreeNode<V>) children.get(name);