diff --git a/doc/utils/sphinx-config/conf.py.in b/doc/utils/sphinx-config/conf.py.in
index 12e5c57f78..073143a7e9 100644
--- a/doc/utils/sphinx-config/conf.py.in
+++ b/doc/utils/sphinx-config/conf.py.in
@@ -288,7 +288,7 @@ rst_prolog = r"""
 
 .. only:: html
 
-   :math:`\renewcommand{\AA}{\textup{\r{A}}`
+   :math:`\renewcommand{\AA}{\text{Å}}`
 
 .. role:: lammps(code)
     :language: LAMMPS