diff --git a/tools/testing/selftests/landlock/Makefile b/tools/testing/selftests/landlock/Makefile
index 02868ac3bc717f341029489ef9ef67eda5ff417c..6632bfff486b8a187e8e42a7f4b8d8f835e115ca 100644
--- a/tools/testing/selftests/landlock/Makefile
+++ b/tools/testing/selftests/landlock/Makefile
@@ -1,6 +1,11 @@
 # SPDX-License-Identifier: GPL-2.0
+#
+# First run: make -C ../../../.. headers_install
 
 CFLAGS += -Wall -O2 $(KHDR_INCLUDES)
+LDLIBS += -lcap
+
+LOCAL_HDRS += common.h
 
 src_test := $(wildcard *_test.c)
 
@@ -8,14 +13,10 @@ TEST_GEN_PROGS := $(src_test:.c=)
 
 TEST_GEN_PROGS_EXTENDED := true
 
-OVERRIDE_TARGETS := 1
-top_srcdir := ../../../..
-include ../lib.mk
-
-khdr_dir = $(top_srcdir)/usr/include
+# Static linking for short targets:
+$(TEST_GEN_PROGS_EXTENDED): LDFLAGS += -static
 
-$(OUTPUT)/true: true.c
-	$(LINK.c) $< $(LDLIBS) -o $@ -static
+include ../lib.mk
 
-$(OUTPUT)/%_test: %_test.c $(khdr_dir)/linux/landlock.h ../kselftest_harness.h common.h
-	$(LINK.c) $< $(LDLIBS) -o $@ -lcap -I$(khdr_dir)
+# Static linking for targets with $(OUTPUT)/ prefix:
+$(TEST_GEN_PROGS_EXTENDED): LDFLAGS += -static
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index d44c72b3abe36d6d174807ee9679ff33e676205a..9d4cb94cf43741013242cd28908047f97b9775ac 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -42,6 +42,10 @@ endif
 selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
 top_srcdir = $(selfdir)/../../..
 
+ifeq ($(KHDR_INCLUDES),)
+KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
+endif
+
 # The following are built by lib.mk common compile rules.
 # TEST_CUSTOM_PROGS should be used by tests that require
 # custom build rule and prevent common build rule use.