diff --git a/loopback/util/log.js b/loopback/util/log.js
index 59a4e4679..cf12dcb2f 100644
--- a/loopback/util/log.js
+++ b/loopback/util/log.js
@@ -60,8 +60,8 @@ exports.translateValues = async(instance, changes) => {
 
 /**
  * Returns the changes between two objects
- * @param {*} original - Original object
- * @param {*} changes - New changes
+ * @param {Object} original - Original object
+ * @param {Object} changes - New changes
  * @return {Object} Old and new values
  */
 exports.getChanges = (original, changes) => {