diff --git a/docs/change-log.md b/docs/change-log.md
index 6b4d8fe5..7ce47fb2 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -29,6 +29,7 @@
 - Add `params:` attribute to `m.route.Link`. ([#2537](https://github.com/MithrilJS/mithril.js/pull/2537) [@isiahmeadows](https://github.com/isiahmeadows))
 - Add `m.censor`. ([#2538](https://github.com/MithrilJS/mithril.js/pull/2538) [@isiahmeadows](https://github.com/isiahmeadows))
 - Re-add stream bundles. ([#2539](https://github.com/MithrilJS/mithril.js/pull/2539) [@isiahmeadows](https://github.com/isiahmeadows))
+- Remove extra isLifecycleMethod call from removeAttr. ([#2594](https://github.com/MithrilJS/mithril.js/pull/2594) [@ZeikJT](https://github.com/zeikjt))
 
 Important note: if you were using any of these undocumented tools, they are no longer available as of this release. This is not considered a breaking change as they were written for internal usage and as of v2 are all 100% unsupported in userland.
 
diff --git a/render/render.js b/render/render.js
index 70c7568b..d5fc492e 100644
--- a/render/render.js
+++ b/render/render.js
@@ -760,7 +760,7 @@ module.exports = function($window) {
 	}
 	function removeAttr(vnode, key, old, ns) {
 		if (key === "key" || key === "is" || old == null || isLifecycleMethod(key)) return
-		if (key[0] === "o" && key[1] === "n" && !isLifecycleMethod(key)) updateEvent(vnode, key, undefined)
+		if (key[0] === "o" && key[1] === "n") updateEvent(vnode, key, undefined)
 		else if (key === "style") updateStyle(vnode.dom, old, null)
 		else if (
 			hasPropertyKey(vnode, key, ns)