diff --git a/R/util.R b/R/util.R
index 9bf05ab..45f1df1 100644
--- a/R/util.R
+++ b/R/util.R
@@ -108,7 +108,8 @@
     "\\usepackage{colortbl}",
     "\\usepackage{pdflscape}",
     "\\usepackage{tabu}",
-    "\\usepackage{threeparttable}"
+    "\\usepackage{threeparttable}",
+    "\\usepackage[normalem]{ulem}"
   ))
 }