--- ./docs/tutorial/Makefile.am.orig	2014-09-29 15:02:16.000000000 -0500
+++ ./docs/tutorial/Makefile.am	2015-03-18 22:04:36.171382357 -0500
@@ -40,7 +40,7 @@
 html: gtk-tut.sgml
 	if test -w $(srcdir); then \
 	  (cd $(srcdir); \
-	   db2html gtk-tut.sgml; \
+	   db2html -o gtk-tut gtk-tut.sgml; \
 	   test -d html && rm -r html; \
 	   mv gtk-tut html; \
 	   mkdir html/images; \