diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index c583a1e1bd3c16356cf67a772a3e680adec9681a..4e9287bfdf28477b36ee505aba51a17e6cae106f 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -39,9 +39,6 @@ skip-inst := $(if $(filter %/uapi,$(obj)),1)
 
 ifeq ($(skip-inst),)
 
-# generated header directory
-gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
-
 # Kbuild file is optional
 kbuild-file := $(srctree)/$(obj)/Kbuild
 -include $(kbuild-file)
@@ -53,7 +50,7 @@ endif
 
 installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
 
-gendir        := $(objtree)/$(gen)
+gendir        := $(objtree)/$(subst include/,include/generated/,$(obj))
 header-files  := $(notdir $(wildcard $(srcdir)/*.h))
 header-files  += $(notdir $(wildcard $(srcdir)/*.agh))
 header-files  := $(filter-out $(no-export-headers), $(header-files))