diff --git a/modules/default/calendar/calendar.js b/modules/default/calendar/calendar.js
index 19440998..644fc1f6 100644
--- a/modules/default/calendar/calendar.js
+++ b/modules/default/calendar/calendar.js
@@ -262,7 +262,7 @@ Module.register("calendar", {
 	/* hasCalendarURL(url)
 	 * Check if this config contains the calendar url.
 	 *
-	 * argument url sting - Url to look for.
+	 * argument url string - Url to look for.
 	 *
 	 * return bool - Has calendar url
 	 */
@@ -311,7 +311,7 @@ Module.register("calendar", {
 	/* createEventList(url)
 	 * Requests node helper to add calendar url.
 	 *
-	 * argument url sting - Url to add.
+	 * argument url string - Url to add.
 	 */
 	addCalendar: function (url, user, pass, calendarConfig) {
 		this.sendSocketNotification("ADD_CALENDAR", {
@@ -378,7 +378,7 @@ Module.register("calendar", {
 	},
 
 	/* shorten(string, maxLength)
-	 * Shortens a sting if it's longer than maxLenthg.
+	 * Shortens a string if it's longer than maxLenthg.
 	 * Adds an ellipsis to the end.
 	 *
 	 * argument string string - The string to shorten.
diff --git a/modules/node_modules/node_helper/index.js b/modules/node_modules/node_helper/index.js
index bdeccf8b..8d0372bd 100644
--- a/modules/node_modules/node_helper/index.js
+++ b/modules/node_modules/node_helper/index.js
@@ -26,7 +26,7 @@ NodeHelper = Class.extend({
 	/* socketNotificationReceived(notification, payload)
 	 * This method is called when a socket notification arrives.
 	 *
-	 * argument notification string - The identifier of the noitication.
+	 * argument notification string - The identifier of the notification.
 	 * argument payload mixed - The payload of the notification.
 	 */
 	socketNotificationReceived: function(notification, payload) {
@@ -54,7 +54,7 @@ NodeHelper = Class.extend({
 	/* sendSocketNotification(notification, payload)
 	 * Send a socket notification to the node helper.
 	 *
-	 * argument notification string - The identifier of the noitication.
+	 * argument notification string - The identifier of the notification.
 	 * argument payload mixed - The payload of the notification.
 	 */
 	sendSocketNotification: function(notification, payload) {