1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index bc592147b..0ea8e4c97 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 [![Coverage Status](https://coveralls.io/repos/vim/vim/badge.svg?branch=master&service=github)](https://coveralls.io/github/vim/vim?branch=master)
 [![Appveyor Build status](https://ci.appveyor.com/api/projects/status/o2qht2kjm02sgghk?svg=true)](https://ci.appveyor.com/project/chrisbra/vim)
 [![Coverity Scan](https://scan.coverity.com/projects/241/badge.svg)](https://scan.coverity.com/projects/vim)
+[![Language Grade: C/C++](https://img.shields.io/lgtm/grade/cpp/g/vim/vim.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/vim/vim/context:cpp)
 [![Debian CI](https://badges.debian.net/badges/debian/testing/vim/version.svg)](https://buildd.debian.org/vim)