diff --git a/tests/environments/fancythm/test.tex b/tests/environments/fancythm/test.tex
index 6cbbfc2..df202b2 100644
--- a/tests/environments/fancythm/test.tex
+++ b/tests/environments/fancythm/test.tex
@@ -1,5 +1,8 @@
 \documentclass[12pt]{article}
 
+
+\usepackage[default styles]{thmstyle}
+
 \usepackage[number in = section]{fancythm}
 
 \makeatletter