diff --git a/src/RuleSet/RuleSet.php b/src/RuleSet/RuleSet.php
index 85184da3..62a3d313 100644
--- a/src/RuleSet/RuleSet.php
+++ b/src/RuleSet/RuleSet.php
@@ -97,9 +97,6 @@ public function getLineNo()
         return $this->lineNumber;
     }
 
-    /**
-     * @param Rule|null $oSibling
-     */
     public function addRule(Rule $rule, ?Rule $oSibling = null): void
     {
         $sRule = $rule->getRule();