diff --git a/tests/Unit/CommandRouteGeneratorTest.php b/tests/Unit/CommandRouteGeneratorTest.php
index e958810c..ce8ee307 100644
--- a/tests/Unit/CommandRouteGeneratorTest.php
+++ b/tests/Unit/CommandRouteGeneratorTest.php
@@ -157,7 +157,11 @@ public function can_generate_dts_file_without_routes()
         Artisan::call('ziggy:generate', ['--declarations-only' => true]);
 
         $this->assertFileExists(base_path('resources/js/ziggy.d.ts'));
-        $this->assertFileDoesNotExist(base_path('resources/js/ziggy.js'));
+
+        if(method_exists($this, 'assertFileDoesNotExist'))
+            $this->assertFileDoesNotExist(base_path('resources/js/ziggy.js'));
+        else
+            $this->assertFileNotExists(base_path('resources/js/ziggy.js'));
     }
 
     /** @test */