diff --git a/ruthesis.sty b/ruthesis.sty
index a5298e6..7b3d98e 100644
--- a/ruthesis.sty
+++ b/ruthesis.sty
@@ -40,7 +40,9 @@
 % e-readers/screens clearly, and have compatible licensing
 % requirements
 % allows UTF encoding, needed for Icelandic and other accented characters
+\RequirePackage{fontspec}
 \RequirePackage{unicode-math}% loads STIX and math unicode characters
+
 \setmathfont{STIX Two Math}
 \setmainfont{STIX Two Text}[
 Extension={.otf},