diff --git a/tests/Filter/ArrayFilterTest.php b/tests/Filter/ArrayFilterTest.php
index b63b505..ba54161 100644
--- a/tests/Filter/ArrayFilterTest.php
+++ b/tests/Filter/ArrayFilterTest.php
@@ -170,7 +170,7 @@ public function testJson(): void
         $this->assertEquals(1.4, ArrayFilter::json(1.4));
         $this->assertEquals('[1,2]', ArrayFilter::json([1, 2]));
         $this->assertEquals('{"a":1,"b":2}', ArrayFilter::json(['a' => 1, 'b' => 2]));
-        $this->assertEquals('{
+        $this->assertCommandOutput('{
     "a": 1,
     "b": 2
 }', ArrayFilter::json(['a' => 1, 'b' => 2], true));