diff --git a/source/beamerfontthememetropolis.dtx b/source/beamerfontthememetropolis.dtx
index 0cc54e9..f9b2009 100644
--- a/source/beamerfontthememetropolis.dtx
+++ b/source/beamerfontthememetropolis.dtx
@@ -42,7 +42,6 @@
 %    \begin{macrocode}
 \ifboolexpr{bool {xetex} or bool {luatex}}{
   \RequirePackage[no-math]{fontspec}
-  \defaultfontfeatures{Mapping=tex-text}
 %    \end{macrocode}
 %
 % To simplify the check whether the |Fira| fonts are installed, a set macros is