diff --git a/README.md b/README.md
index d666d6defe..87f0f5b796 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Prometheus
+# Prometheus ![](https://api.travis-ci.org/prometheus/prometheus.svg)
 
 Prometheus is a systems and service monitoring system. It collects metrics
 from configured targets at given intervals, evaluates rule expressions,