diff --git a/s1gw/S1GW_Tests.ttcn b/s1gw/S1GW_Tests.ttcn
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+/* OsmoS1GW (S1AP Gateway) test suite in TTCN-3
+ *
+ * (C) 2024 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
+ * Author: Vadim Yanitskiy <vyanitskiy@sysmocom.de>
+ *
+ * All rights reserved.
+ *
+ * Released under the terms of GNU General Public License, Version 2 or
+ * (at your option) any later version.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+module S1GW_Tests {
+
+import from General_Types all;
+import from Native_Functions all;
+import from IPL4asp_Types all;
+import from Misc_Helpers all;
+import from S1AP_Types all;
+import from S1AP_Templates all;
+import from S1AP_PDU_Descriptions all;
+import from S1AP_IEs all;
+import from S1AP_PDU_Contents all;
+import from S1AP_Constants all;
+import from Osmocom_Types all;
+
+control {
+}
+
+}