diff --git a/nixos/tests/mysql-replication.nix b/nixos/tests/mysql-replication.nix
index 82ee76f6b3a..75c6d793feb 100644
--- a/nixos/tests/mysql-replication.nix
+++ b/nixos/tests/mysql-replication.nix
@@ -64,5 +64,11 @@ in
     $slave2->waitForUnit("mysql");
     $slave2->waitForOpenPort(3306);
     $slave2->succeed("echo 'use testdb; select * from tests' | mysql -u root -N | grep 4");
+    $slave2->succeed("systemctl stop mysql");
+    $master->succeed("echo 'insert into testdb.tests values (123, 456);' | mysql -u root -N");
+    $slave2->succeed("systemctl start mysql");
+    $slave2->waitForUnit("mysql");
+    $slave2->waitForOpenPort(3306);
+    $slave2->succeed("echo 'select * from testdb.tests where Id = 123;' | mysql -u root -N | grep 456");
   '';
 })