diff --git a/render/render.js b/render/render.js
index fa4bbed1..d5c79b9a 100644
--- a/render/render.js
+++ b/render/render.js
@@ -500,7 +500,7 @@ module.exports = function($window) {
 			if (typeof onevent === "function") onevent.call(element, e)
 			return result
 		}
-		if (key in element) element[key] = callback
+		if (key in element) element[key] = typeof value === "function" ? callback : null
 		else {
 			var eventName = key.slice(2)
 			if (vnode.events === undefined) vnode.events = {}
diff --git a/test-utils/domMock.js b/test-utils/domMock.js
index 1e78f070..5da93b98 100644
--- a/test-utils/domMock.js
+++ b/test-utils/domMock.js
@@ -237,6 +237,7 @@ module.exports = function() {
 						}
 						if (typeof this["on" + e.type] === "function" && !isModernEvent(e.type)) this["on" + e.type](e)
 					},
+					onclick: null,
 				}
 
 				if (element.nodeName === "A") {
diff --git a/test-utils/tests/test-domMock.js b/test-utils/tests/test-domMock.js
index bbc898b2..edd896d5 100644
--- a/test-utils/tests/test-domMock.js
+++ b/test-utils/tests/test-domMock.js
@@ -559,6 +559,9 @@ o.spec("domMock", function() {
 				$document.body.removeChild(div)
 			})
 
+			o("has onclick", function() {
+				o("onclick" in div).equals(true)
+			})
 			o("addEventListener works", function() {
 				div.addEventListener("click", spy, false)
 				div.dispatchEvent(e)