diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2fd9e9..fdf7c36 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Changed
+
+- Set the maths style and bold-maths style to ISO for the maths fonts.
+
 ### Removed
 
 - The option `fmode` was removed from `se2fonts`; it was already deprecated
diff --git a/se2fonts.dtx b/se2fonts.dtx
index 9879365..ad50690 100644
--- a/se2fonts.dtx
+++ b/se2fonts.dtx
@@ -222,6 +222,7 @@
 % If the user uses \LuaTeX{}, load \pkg{fontspec} and \pkg{unicode-math}.
 %    \begin{macrocode}
     \RequirePackage{fontspec}
+    \PassOptionsToPackage{math-style=ISO,bold-style=ISO}{unicode-math}
     \RequirePackage{unicode-math}
 %    \end{macrocode}
 %