diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile
index bbaf4d937dd8..1bdfd141c0fb 100644
--- a/tools/testing/selftests/net/forwarding/Makefile
+++ b/tools/testing/selftests/net/forwarding/Makefile
@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0+ OR MIT
 
+CFLAGS += $(KHDR_INCLUDES)
+
 TEST_PROGS := \
 	bridge_activity_notify.sh \
 	bridge_fdb_learning_limit.sh \