diff --git a/src/Collectors/ClassConstFetchCollector.php b/src/Collectors/ClassConstFetchCollector.php
index 8808ea2..f2e40af 100644
--- a/src/Collectors/ClassConstFetchCollector.php
+++ b/src/Collectors/ClassConstFetchCollector.php
@@ -60,7 +60,7 @@ public function processNode(Node $node, Scope $scope): ?array
             if ($classReflection->hasConstant($constantName)) {
                 $constantReflection = $classReflection->getConstant($constantName);
                 $declaringClass = $constantReflection->getDeclaringClass();
-                if ($declaringClass->getFileName() !== $classReflection->getFileName()) {
+                if ($declaringClass->getName() !== $classReflection->getName()) {
                     return [$declaringClass->getName() . '::' . $constantName];
                 }