diff --git a/frappe/public/js/frappe/chat.js b/frappe/public/js/frappe/chat.js
index 177bd5913e..2502f9201c 100644
--- a/frappe/public/js/frappe/chat.js
+++ b/frappe/public/js/frappe/chat.js
@@ -93,10 +93,10 @@ frappe.datetime.datetime = class {
 	 * @description Frappe's datetime Class's constructor.
 	 */
 	constructor (instance, format = null) {
-		if ( typeof moment === undefined )
+		if ( typeof moment === 'undefined' )
 			throw new frappe.ImportError(`Moment.js not installed.`)
 
-		this.moment      = instance ? moment(instance, format) : moment()
+		this.moment = instance ? moment(instance, format) : moment()
 	}
 
 	/**