diff --git a/R/zzz.R b/R/zzz.R
index 226ece6..74e9464 100644
--- a/R/zzz.R
+++ b/R/zzz.R
@@ -12,5 +12,6 @@
     usepackage_latex("pdflscape")
     usepackage_latex("tabu")
     usepackage_latex("threeparttable")
+    usepackage_latex("ulem", "normalem")
   }
 }