diff --git a/README.md b/README.md
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-[![coverage report](https://gitlab.kwant-project.org/works-on-my-machine/zesje/badges/%{default_branch}/coverage.svg)](https://gitlab.kwant-project.org/works-on-my-machine/zesje/commits/pytest-cov)
+[![coverage report](https://gitlab.kwant-project.org/works-on-my-machine/zesje/badges/master/coverage.svg)](https://gitlab.kwant-project.org/works-on-my-machine/zesje/commits/pytest-cov)
 
 # Welcome to Zesje