diff --git a/src/core/environment.js b/src/core/environment.js
index 587991e607..ccc9f6d252 100644
--- a/src/core/environment.js
+++ b/src/core/environment.js
@@ -513,7 +513,7 @@ p5.prototype.windowHeight = getWindowHeight();
  * canvas or do any other adjustments to accommodate the new window size.
  *
  * @method windowResized
- * @param {Object} [event] optional Event callback argument.
+ * @param {UIEvent} [event] optional Event callback argument.
  * @example
  * <div class="norender"><code>
  * function setup() {
diff --git a/src/events/touch.js b/src/events/touch.js
index 29c23ee873..33ce27ad45 100644
--- a/src/events/touch.js
+++ b/src/events/touch.js
@@ -76,7 +76,7 @@ function getTouchInfo(canvas, w, h, e, i = 0) {
  * to the end of the method.
  *
  * @method touchStarted
- * @param  {Object} [event] optional TouchEvent callback argument.
+ * @param  {TouchEvent} [event] optional TouchEvent callback argument.
  * @example
  * <div>
  * <code>
@@ -155,7 +155,7 @@ p5.prototype._ontouchstart = function(e) {
  * to the end of the method.
  *
  * @method touchMoved
- * @param  {Object} [event] optional TouchEvent callback argument.
+ * @param  {TouchEvent} [event] optional TouchEvent callback argument.
  * @example
  * <div>
  * <code>
@@ -226,7 +226,7 @@ p5.prototype._ontouchmove = function(e) {
  * to the end of the method.
  *
  * @method touchEnded
- * @param  {Object} [event] optional TouchEvent callback argument.
+ * @param  {TouchEvent} [event] optional TouchEvent callback argument.
  * @example
  * <div>
  * <code>