diff --git a/tests/Unit/Rule/RuleTest.php b/tests/Unit/Rule/RuleTest.php
index 8265aa640..604ace1c5 100644
--- a/tests/Unit/Rule/RuleTest.php
+++ b/tests/Unit/Rule/RuleTest.php
@@ -9,6 +9,7 @@
 use Sabberworm\CSS\Settings;
 use Sabberworm\CSS\Rule\Rule;
 use Sabberworm\CSS\Value\RuleValueList;
+use Sabberworm\CSS\Value\Value;
 use Sabberworm\CSS\Value\ValueList;
 
 /**