diff --git a/README.rst b/README.rst
index 920ea700..264dda51 100644
--- a/README.rst
+++ b/README.rst
@@ -2,7 +2,7 @@
     :target: https://github.com/keitaroinc/ckanext-saml2auth/actions
 
 .. image:: https://coveralls.io/repos/github/keitaroinc/ckanext-saml2auth/badge.svg?branch=main
-:target: https://coveralls.io/github/keitaroinc/ckanext-saml2auth?branch=main
+     :target: https://coveralls.io/github/keitaroinc/ckanext-saml2auth?branch=main
 
 .. image:: https://img.shields.io/badge/python-3.8-blue.svg
     :target: https://www.python.org/downloads/release/python-384/