diff --git a/README.md b/README.md
index bfdce655..c3c18f36 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+[![Build Status](https://travis-ci.org/lhorie/mithril.js.svg?branch=master)](https://travis-ci.org/lhorie/mithril.js)
+
 # Mithril
 
 A Javascript Framework for Building Brilliant Applications
diff --git a/archive/v0.1.1/mithril-tests.js b/archive/v0.1.1/mithril-tests.js
index 1415912b..9bec759a 100644
--- a/archive/v0.1.1/mithril-tests.js
+++ b/archive/v0.1.1/mithril-tests.js
@@ -432,7 +432,12 @@ test.print = function(print) {
 		print(test.failures[i].toString())
 	}
 	print("tests: " + test.total + "\nfailures: " + test.failures.length)
+	
+	if (test.failures.length > 0) {
+		throw new Error(test.failures.length + " tests did not pass")
+	}
 }
+
 var mock = {}
 mock.window = new function() {
 	var window = {}