diff --git a/README.md b/README.md
index 0d0e9f8..ed419a3 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+[![Language grade: Python](https://img.shields.io/lgtm/grade/python/g/rcarmo/imapbackup.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/rcarmo/imapbackup/context:python)
+
 imapbackup
 ==========