diff --git a/tests/writers-lang-and-dir.latex b/tests/writers-lang-and-dir.latex
index ff48d909c..d37851df7 100644
--- a/tests/writers-lang-and-dir.latex
+++ b/tests/writers-lang-and-dir.latex
@@ -12,7 +12,7 @@
   \else
     \usepackage{fontspec}
   \fi
-  \defaultfontfeatures{Mapping=tex-text,Scale=MatchLowercase}
+  \defaultfontfeatures{Ligatures=TeX,Scale=MatchLowercase}
   \newcommand{\euro}{€}
 \fi
 % use upquote if available, for straight quotes in verbatim environments