diff --git a/docs/en/data_types/nullable.md b/docs/en/data_types/nullable.md
index 1680f82e35d..3030f71a9c6 100644
--- a/docs/en/data_types/nullable.md
+++ b/docs/en/data_types/nullable.md
@@ -31,7 +31,7 @@ Ok.
 
 0 rows in set. Elapsed: 0.012 sec.
 
-:) INSERT INTO t_null VALUES (1, NULL)
+:) INSERT INTO t_null VALUES (1, NULL), (2, 3)
 
 INSERT INTO t_null VALUES
 
diff --git a/docs/ru/data_types/nullable.md b/docs/ru/data_types/nullable.md
index 5bc6350280a..f9c3715519b 100644
--- a/docs/ru/data_types/nullable.md
+++ b/docs/ru/data_types/nullable.md
@@ -38,7 +38,7 @@ Ok.
 
 0 rows in set. Elapsed: 0.012 sec.
 
-:) INSERT INTO t_null VALUES (1, NULL)
+:) INSERT INTO t_null VALUES (1, NULL), (2, 3)
 
 INSERT INTO t_null VALUES