diff --git a/README.md b/README.md
index 85f98f36..e6fdf25a 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Wiki is [available online](https://github.com/OpenSC/OpenSC/wiki)
 
 Please take a look at the documentation before trying to use OpenSC.
 
-[![Travis CI Build Status](https://travis-ci.org/OpenSC/OpenSC.svg)](https://travis-ci.org/OpenSC/OpenSC/branches) [![AppVeyor CI Build Status](https://ci.appveyor.com/api/projects/status/github/OpenSC/OpenSC?branch=master&svg=true)](https://ci.appveyor.com/project/LudovicRousseau/OpenSC/branch/master) [![Coverity Scan Status](https://scan.coverity.com/projects/4026/badge.svg)](https://scan.coverity.com/projects/4026)
+[![Travis CI Build Status](https://travis-ci.org/OpenSC/OpenSC.svg)](https://travis-ci.org/OpenSC/OpenSC/branches) [![AppVeyor CI Build Status](https://ci.appveyor.com/api/projects/status/github/OpenSC/OpenSC?branch=master&svg=true)](https://ci.appveyor.com/project/LudovicRousseau/OpenSC/branch/master) [![Coverity Scan Status](https://scan.coverity.com/projects/4026/badge.svg)](https://scan.coverity.com/projects/4026) [![Language grade: C/C++](https://img.shields.io/lgtm/grade/cpp/g/OpenSC/OpenSC.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/OpenSC/OpenSC/context:cpp)
 
 Build and test status of specific cards: