diff --git a/article-template.tex b/article-template.tex
index 30f0ae2..a861f08 100644
--- a/article-template.tex
+++ b/article-template.tex
@@ -9,6 +9,8 @@
 \usepackage{parskip}
 %for math typing
 \usepackage{latexsym, amssymb, amsfonts, mathtools, xfrac}
+%for making pretty trees
+\usepackage{forest}
 %for source code listings
 \usepackage{listings}
 %for algorithm typing