diff --git a/tests/enospc_shim.c b/tests/enospc_shim.c
index fec12797..333a49b7 100644
--- a/tests/enospc_shim.c
+++ b/tests/enospc_shim.c
@@ -1,5 +1,8 @@
-// SPDX-FileCopyrightText: 2024 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
+// SPDX-License-Identifier: GPL-3.0-only OR HDF5
+
+// This file may be used, modified, and distributed under either GPL-3.0-only
+// or the HDF5 license, at the recipient's option.
 
 #define _GNU_SOURCE
 #include <dlfcn.h>