diff --git a/tests/Rules/StrictCalls/StrictFunctionCallsRuleTest.php b/tests/Rules/StrictCalls/StrictFunctionCallsRuleTest.php
index 8c46b360..e3004391 100644
--- a/tests/Rules/StrictCalls/StrictFunctionCallsRuleTest.php
+++ b/tests/Rules/StrictCalls/StrictFunctionCallsRuleTest.php
@@ -75,7 +75,7 @@ public function testRule(): void
 	public function testBug231(): void
 	{
 		if (PHP_VERSION_ID < 80100) {
-			$this->markTestSkipped('Test requires PHP 8.1.');
+			self::markTestSkipped('Test requires PHP 8.1.');
 		}
 		$this->analyse([__DIR__ . '/data/bug-231.php'], []);
 	}