--- catdoc-0.94.4/desktop/Makefile.in
+++ catdoc-0.94.4/desktop/Makefile.in
@@ -20,10 +20,10 @@
 clean:
 
 install: all
-	../mkinstalldirs $(prefix)$(desktopdir)
-	../mkinstalldirs $(prefix)$(iconsdir)
-	$(INSTALL) -m 644 wordview.desktop $(prefix)$(desktopdir)/wordview.desktop
-	$(INSTALL) -m 644 wordview.xpm $(prefix)$(iconsdir)/wordview.xpm
+	../mkinstalldirs $(installroot)$(prefix)$(desktopdir)
+	../mkinstalldirs $(installroot)$(prefix)$(iconsdir)
+	$(INSTALL) -m 644 wordview.desktop $(installroot)$(prefix)$(desktopdir)/wordview.desktop
+	$(INSTALL) -m 644 wordview.xpm $(installroot)$(prefix)$(iconsdir)/wordview.xpm
 
 distclean: clean
 	rm Makefile