diff --git a/tests/queries/0_stateless/01889_sql_json_functions.reference b/tests/queries/0_stateless/01889_sql_json_functions.reference
index d85decedda6..9f0e9cd64c2 100644
--- a/tests/queries/0_stateless/01889_sql_json_functions.reference
+++ b/tests/queries/0_stateless/01889_sql_json_functions.reference
@@ -17,7 +17,7 @@ SELECT JSON_VALUE('{"hello":["world","world2"]}', '$.hello');
 ["world","world2"]
 SELECT JSON_VALUE('{"hello":{"world":"!"}}', '$.hello');
 {"world":"!"}
-SELECT JSON_VALUE('{hello:world}', '$.hello');
+SELECT JSON_VALUE('{hello:world}', '$.hello'); -- invalid json => default value (empty string)
 
 SELECT JSON_VALUE('', '$.hello');
 
@@ -32,7 +32,7 @@ select JSON_VALUE('{"a":"\\n\\u0000"}', '$.a');
 select JSON_VALUE('{"a":"\\u263a"}', '$.a');
 ☺
 select JSON_VALUE('{"a":"b"}', '$.b') settings function_return_type_allow_nullable=true;
-null
+\N
 SELECT '--JSON_QUERY--';
 --JSON_QUERY--
 SELECT JSON_QUERY('{"hello":1}', '$');