diff --git a/README.md b/README.md
index 850f1b6..262ba1e 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,3 @@
+[![CircleCI](https://circleci.com/gh/hanshoglund/iso-deriving.svg?style=svg)](https://circleci.com/gh/hanshoglund/iso-deriving)
 
 # iso-deriving