diff --git a/tests/mathcat_test.php b/tests/mathcat_test.php
index fd737261c..9de701825 100644
--- a/tests/mathcat_test.php
+++ b/tests/mathcat_test.php
@@ -59,7 +59,9 @@ public function test_newton_raphson_multi_stable(): void {
     /**
      * Test if array_to_vector and vector_to_array work as expected
      *
-     * @param array $data
+     * @param array $given
+     * @param array $expected
+     * @param array $structure
      * @return void
      */
     public function test_conversion_of_array_to_vector($given, $expected, $structure): void {