diff --git a/mysql-test/r/func_json.result b/mysql-test/r/func_json.result
index 5fe88547580..9b9e0623269 100644
--- a/mysql-test/r/func_json.result
+++ b/mysql-test/r/func_json.result
@@ -13,6 +13,9 @@ json_valid('[false, true, null]')
 select json_valid(repeat('[', 1000));
 json_valid(repeat('[', 1000))
 0
+select json_valid(repeat('{"a":', 1000));
+json_valid(repeat('{"a":', 1000))
+0
 select json_value('{"key1":123}', '$.key2');
 json_value('{"key1":123}', '$.key2')
 NULL
diff --git a/mysql-test/t/func_json.test b/mysql-test/t/func_json.test
index 3d3fdb7fcd8..51ea05cf5f2 100644
--- a/mysql-test/t/func_json.test
+++ b/mysql-test/t/func_json.test
@@ -3,6 +3,7 @@ select json_valid('"string"}');
 select json_valid('{"key1":1, "key2":[2,3]}');
 select json_valid('[false, true, null]');
 select json_valid(repeat('[', 1000));
+select json_valid(repeat('{"a":', 1000));
 
 select json_value('{"key1":123}', '$.key2');
 select json_value('{"key1":123}', '$.key1');