diff --git a/render/render.js b/render/render.js
index 9ee2628e..023491f3 100644
--- a/render/render.js
+++ b/render/render.js
@@ -134,7 +134,7 @@ module.exports = function($window) {
 			if (old.length === vnodes.length && isUnkeyed) {
 				for (var i = 0; i < old.length; i++) {
 					if (old[i] === vnodes[i]) continue
-					else if (old[i] == null) insertNode(parent, createNode(vnodes[i], hooks, ns), getNextSibling(old, i + 1, nextSibling))
+					else if (old[i] == null && vnodes[i] != null) insertNode(parent, createNode(vnodes[i], hooks, ns), getNextSibling(old, i + 1, nextSibling))
 					else if (vnodes[i] == null) removeNodes(old, i, i + 1, vnodes)
 					else updateNode(parent, old[i], vnodes[i], hooks, getNextSibling(old, i + 1, nextSibling), false, ns)
 				}
diff --git a/render/tests/test-updateNodes.js b/render/tests/test-updateNodes.js
index 7b0f9715..524db029 100644
--- a/render/tests/test-updateNodes.js
+++ b/render/tests/test-updateNodes.js
@@ -104,6 +104,15 @@ o.spec("updateNodes", function() {
 		o(updated[0].dom.nodeValue).equals("a")
 		o(updated[0].dom).equals(root.childNodes[0])
 	})
+	o("handles undefined to null noop", function() {
+		var vnodes = [null, {tag: "div"}]
+		var updated = [undefined, {tag: "div"}]
+
+		render(root, vnodes)
+		render(root, updated)
+
+		o(root.childNodes.length).equals(1)
+	})
 	o("reverses els w/ even count", function() {
 		var vnodes = [{tag: "a", key: 1}, {tag: "b", key: 2}, {tag: "i", key: 3}, {tag: "s", key: 4}]
 		var updated = [{tag: "s", key: 4}, {tag: "i", key: 3}, {tag: "b", key: 2}, {tag: "a", key: 1}]