diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 1c8a1963d03f..70f03dff5479 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -134,7 +134,8 @@ endif
 # Selftest makefiles can override those targets by setting
 # OVERRIDE_TARGETS = 1.
 ifeq ($(OVERRIDE_TARGETS),)
-$(OUTPUT)/%:%.c
+LOCAL_HDRS := $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
+$(OUTPUT)/%:%.c $(LOCAL_HDRS)
 	$(LINK.c) $^ $(LDLIBS) -o $@
 
 $(OUTPUT)/%.o:%.S