diff --git a/tst/eventfd_test.cpp b/tst/eventfd_test.cpp
index c383bc6..137bc94 100644
--- a/tst/eventfd_test.cpp
+++ b/tst/eventfd_test.cpp
@@ -14,6 +14,11 @@
    limitations under the License.
 */
 
+/*
+ * This source code is part of the near-RT RIC (RAN Intelligent Controller)
+ * platform project (RICP).
+*/
+
 #include <type_traits>
 #include <memory>
 #include <cstdint>