diff --git a/latex/math/imports.sty b/latex/math/imports.sty
index 1a2df99..59163ef 100644
--- a/latex/math/imports.sty
+++ b/latex/math/imports.sty
@@ -15,6 +15,7 @@
 %\RequirePackage{tikz}
 
 %\usetikzlibrary{arrows,automata}
+%\usetikzlibrary{trees}
 
 % ---------------------------------------------------