diff --git a/mithril.js b/mithril.js
index cd79c442..688112c9 100644
--- a/mithril.js
+++ b/mithril.js
@@ -990,7 +990,10 @@ var m = (function app(window, undefined) {
 		}
 	}
 	m.deferred.onerror = function(e) {
-		if (type.call(e) === "[object Error]" && !e.constructor.toString().match(/ Error/)) throw e
+		if (type.call(e) === "[object Error]" && !e.constructor.toString().match(/ Error/)) {
+			pendingRequests = 0
+			throw e
+		}
 	};
 
 	m.sync = function(args) {
diff --git a/tests/mithril-tests.js b/tests/mithril-tests.js
index 041b5331..7194f61a 100644
--- a/tests/mithril-tests.js
+++ b/tests/mithril-tests.js
@@ -3925,7 +3925,6 @@ function testMithril(mock) {
 		var prop = m.request({method: "GET", url: "test", deserialize: function() {throw new TypeError("error occurred")}}).then(null, error)
 		try {mock.XMLHttpRequest.$instances.pop().onreadystatechange()}
 		catch (e) {exception = e}
-		m.endComputation()
 		return prop() === undefined && error() === "no error" && exception.message == "error occurred"
 	})
 	test(function() {