diff --git a/README.md b/README.md
index 58a7bb19..e236926b 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 [![Build status](https://github.com/WIAS-PDELib/ExtendableGrids.jl/workflows/linux-macos-windows/badge.svg)](https://github.com/WIAS-PDELib/ExtendableGrids.jl/actions)
 [![](https://img.shields.io/badge/docs-stable-blue.svg)](https://WIAS-PDELib.github.io/ExtendableGrids.jl/stable)
 [![](https://img.shields.io/badge/docs-dev-blue.svg)](https://WIAS-PDELib.github.io/ExtendableGrids.jl/dev)
+[![code style: runic](https://img.shields.io/badge/code_style-%E1%9A%B1%E1%9A%A2%E1%9A%BE%E1%9B%81%E1%9A%B2-black)](https://github.com/fredrikekre/Runic.jl)
 
 
 Provide container structure `ExtendableGrid` with type stable content access and lazy content creation holding data for discretization