diff --git a/arch/um/Makefile b/arch/um/Makefile
index 31999bc1c8a4..ba6813a4aa37 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -168,7 +168,7 @@ ifneq ($(KBUILD_SRC),)
 	$(Q)mkdir -p $(objtree)/include/asm-um
 	$(Q)ln -fsn $(srctree)/include/asm-$(HEADER_ARCH) include/asm-um/arch
 else
-	$(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(SUBARCH) arch
+	$(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(HEADER_ARCH) arch
 endif
 
 $(objtree)/$(ARCH_DIR)/include: