diff --git a/phpunit/code/native-property-assign-op-class-const.php b/phpunit/code/native-property-assign-op-class-const.php
new file mode 100644
index 00000000..c28ee39d
--- /dev/null
+++ b/phpunit/code/native-property-assign-op-class-const.php
@@ -0,0 +1,18 @@
+<?php
+
+class NativePropertyAssignOpClassConstBox
+{
+    public int $flags = 7;
+
+    public function clearPublic(): int
+    {
+        $this->flags &= ~ReflectionClassConstant::IS_PUBLIC;
+        return $this->flags;
+    }
+}
+
+function native_property_assign_op_class_const(): int
+{
+    $box = new NativePropertyAssignOpClassConstBox();
+    return $box->clearPublic();
+}