diff --git a/net/core/net-traces.c b/net/core/net-traces.c
index 1132820..71f2095 100644
--- a/net/core/net-traces.c
+++ b/net/core/net-traces.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * consolidates trace point definitions
  *