diff --git a/test/fixtures/config/evil.yml b/test/fixtures/config/evil.yml
new file mode 100644
index 0000000..47cde33
--- /dev/null
+++ b/test/fixtures/config/evil.yml
@@ -0,0 +1 @@
+evil: !<tag:yaml.org,2002:js/function> 'function () {}'