--- Makefile.orig	2018-07-17 10:35:04.000000000 -0400
+++ Makefile	2018-07-17 10:35:44.000000000 -0400
@@ -124,7 +124,7 @@
 # install cannot work on a whole directory
 	cp -rf examples  $(INSTDIR)/share/BerkeleyGW/
 	cp -rf testsuite $(INSTDIR)/share/BerkeleyGW/
-	install manual.html $(INSTDIR)/share/BerkeleyGW/
+	install documentation/users/manual.html $(INSTDIR)/share/BerkeleyGW/
 else
 	$(error Error: Please define installation prefix INSTDIR via 'make install INSTDIR='.)
 endif
@@ -150,4 +150,4 @@
 cleanall: cleanall-bin $(CLEANALL_DIRS)
 
 clean-manual:
-	-$(REMOVE) manual.html
+	-$(REMOVE) documentation/users/manual.html