diff --git a/src/Rules/NarrowPrivateClassMethodParamTypeRule.php b/src/Rules/NarrowPrivateClassMethodParamTypeRule.php
index 2fa97c58..1f9d2c94 100644
--- a/src/Rules/NarrowPrivateClassMethodParamTypeRule.php
+++ b/src/Rules/NarrowPrivateClassMethodParamTypeRule.php
@@ -56,7 +56,7 @@ public function getNodeType(): string
 
     /**
      * @param MethodCall $node
-     * @return string[]
+     * @return RuleError[]
      */
     public function processNode(Node $node, Scope $scope): array
     {