diff --git a/tests/datasets/http/form-urlencoded-json.httpinput b/tests/datasets/http/form-urlencoded-json.httpinput
index 1970e30800..95293e9baa 100644
--- a/tests/datasets/http/form-urlencoded-json.httpinput
+++ b/tests/datasets/http/form-urlencoded-json.httpinput
@@ -1 +1 @@
-{"media_ids":[],"sensitive":false,"status":"Test Status","visibility":"private","spoiler_text":"Title"}
\ No newline at end of file
+{"media_ids":[1],"sensitive":false,"status":"Test Status","visibility":"private","spoiler_text":"Title"}
diff --git a/tests/src/Util/HTTPInputDataTest.php b/tests/src/Util/HTTPInputDataTest.php
index 8f05703b24..4faf5100d0 100644
--- a/tests/src/Util/HTTPInputDataTest.php
+++ b/tests/src/Util/HTTPInputDataTest.php
@@ -79,7 +79,7 @@ class HTTPInputDataTest extends MockedTest
 				'input'       => file_get_contents(__DIR__ . '/../../datasets/http/form-urlencoded-json.httpinput'),
 				'expected'    => [
 					'variables' => [
-						'media_ids'    => [],
+						'media_ids'    => [1],
 						'sensitive'    => false,
 						'status'       => 'Test Status',
 						'visibility'   => 'private',