--- doc/Makefile.in.orig	2014-12-17 16:24:43 UTC
+++ doc/Makefile.in
@@ -516,9 +516,9 @@ uninstall-man: uninstall-man1
 
 install-data-local:
 	@echo "Create help directory"
-	$(MKDIR_P) $(helpdir)
+	$(MKDIR_P) $(DESTDIR)$(helpdir)
 	@echo "Copying help file"
-	cp xpad-user-help.txt $(helpdir)
+	cp xpad-user-help.txt $(DESTDIR)$(helpdir)
 
 uninstall-local:
 	@echo "Delete help directory"