diff --git a/lisp/org.el b/lisp/org.el
index c4d1a342f..2e407a5d2 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -3837,6 +3837,7 @@ Org mode to function properly:
   symbols used for interpreting the entities in `org-entities'.
   You can skip some of these packages if you don't use any of the
   symbols in it.
+- soul: for underline and strike-through
 - graphicx: for including images
 - float, wrapfig: for figure placement
 - longtable: for long tables
diff --git a/lisp/ox-latex.el b/lisp/ox-latex.el
index ff0ca1d23..df3de4c03 100644
--- a/lisp/ox-latex.el
+++ b/lisp/ox-latex.el
@@ -525,7 +525,7 @@ When nil, no transformation is made."
 					 (code . verb)
 					 (italic . "\\emph{%s}")
 					 (strike-through . "\\st{%s}")
-					 (underline . "\\underline{%s}")
+					 (underline . "\\ul{%s}")
 					 (verbatim . protectedtexttt))
   "Alist of LaTeX expressions to convert text markup.