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-rw-r--r--tests/writer.latex2
1 files changed, 2 insertions, 0 deletions
diff --git a/tests/writer.latex b/tests/writer.latex
index 022ad893f..b1c76bc01 100644
--- a/tests/writer.latex
+++ b/tests/writer.latex
@@ -2,6 +2,8 @@
\usepackage{amsmath}
\usepackage[mathletters]{ucs}
\usepackage[utf8x]{inputenc}
+\usepackage{listings}
+\lstnewenvironment{code}{\lstset{language=Haskell,basicstyle=\small\ttfamily}}{}
\setlength{\parindent}{0pt}
\setlength{\parskip}{6pt plus 2pt minus 1pt}