diff --git a/README.md b/README.md
index cd8c524..0a55ebc 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,2 @@
-# micro-codec-json
\ No newline at end of file
+# micro-codec-json
+![Coverage](https://img.shields.io/badge/Coverage-10.0%25-red)
\ No newline at end of file