diff --git a/systems/locksvc/locksvc_test.go b/systems/locksvc/locksvc_test.go
index d448ca21..a8249670 100644
--- a/systems/locksvc/locksvc_test.go
+++ b/systems/locksvc/locksvc_test.go
@@ -162,6 +162,10 @@ func Test5Clients(t *testing.T) {
 	testNClients(t, 5)
 }
 
+func Test20Clients(t *testing.T) {
+	testNClients(t, 20)
+}
+
 func Test1000Clients(t *testing.T) {
 	testNClients(t, 1000)
 }