diff --git a/tools/testing/selftests/landlock/Makefile b/tools/testing/selftests/landlock/Makefile
index a99596ca9882..0b0049e133bb 100644
--- a/tools/testing/selftests/landlock/Makefile
+++ b/tools/testing/selftests/landlock/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 
-CFLAGS += -Wall -O2
+CFLAGS += -Wall -O2 $(KHDR_INCLUDES)
 
 src_test := $(wildcard *_test.c)