diff --git a/Makefile b/Makefile
index 02134de..6b21de1 100644
--- a/Makefile
+++ b/Makefile
@@ -991,7 +991,8 @@ include/generated/utsrelease.h: include/config/kernel.release FORCE
 
 PHONY += headerdep
 headerdep:
-	$(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl
+	$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
+	$(srctree)/scripts/headerdep.pl -I$(srctree)/include
 
 # ---------------------------------------------------------------------------