diff --git a/src/NodeAnalyzer/TestsNodeAnalyzer.php b/src/NodeAnalyzer/TestsNodeAnalyzer.php
index a36d1e6e..b3f726b2 100644
--- a/src/NodeAnalyzer/TestsNodeAnalyzer.php
+++ b/src/NodeAnalyzer/TestsNodeAnalyzer.php
@@ -40,7 +40,7 @@ public function isInTestClass(Node $node): bool
         }
 
         foreach (self::TEST_CASE_OBJECT_CLASSES as $testCaseObjectClass) {
-            if ($classReflection->isSubclassOf($testCaseObjectClass)) {
+            if ($classReflection->is($testCaseObjectClass)) {
                 return true;
             }
         }