diff --git a/src/doc/related_projects/index.rst b/src/doc/related_projects/index.rst
index 68e0493a6ff7bb147759f16ca90b891733a8bdc7..fafadb1ddd91d701c2ab06e8e860f52b4779c13a 100644
--- a/src/doc/related_projects/index.rst
+++ b/src/doc/related_projects/index.rst
@@ -1,5 +1,5 @@
 Related Projects
-+++++++++++++++
+++++++++++++++++
 
 .. toctree::
    :maxdepth: 2