diff -Naur groff-1.22.1-lunar/contrib/mom/Makefile.sub groff-1.22.1/contrib/mom/Makefile.sub
--- groff-1.22.1-lunar/contrib/mom/Makefile.sub	2012-12-30 09:40:29.000000000 +0100
+++ groff-1.22.1/contrib/mom/Makefile.sub	2012-12-30 16:53:31.705736208 +0100
@@ -158,6 +158,7 @@
 	  rm -f $(DESTDIR)$(exampledir)/mom/$$f; \
 	  $(INSTALL_DATA) examples/$$f $(DESTDIR)$(exampledir)/mom/$$f; \
 	done
+	-test -d $(DESTDIR)$(pdfdocdir) || $(mkinstalldirs) $(DESTDIR)$(pdfdocdir)
 	for f in $(PDFDOCFILE); do \
 	  rm -f $(DESTDIR)$(pdfdocdir)/$$f; \
 	  ln -s $(DESTDIR)$(exampledir)/mom/$$f $(DESTDIR)$(pdfdocdir)/$$f; \