Index: Makefile.bsd
--- Makefile.bsd.orig
+++ Makefile.bsd
@@ -151,7 +151,7 @@ install:	miniupnpd
 	$(INSTALL) -m 755 miniupnpd $(DESTDIR)$(INSTALLBINDIR)
 	$(INSTALL) -d $(DESTDIR)$(INSTALLETCDIR)
 	$(INSTALL) -b miniupnpd.conf $(DESTDIR)$(INSTALLETCDIR)/miniupnpd.conf.sample
-	sed -i '' -e "s/^uuid=[-0-9a-fA-F]*/uuid=`$(UUIDBIN)`/" $(DESTDIR)$(INSTALLETCDIR)/miniupnpd.conf.sample
+	sed -i -e "s/^uuid=[-0-9a-fA-F]*/uuid=`$(UUIDBIN)`/" $(DESTDIR)$(INSTALLETCDIR)/miniupnpd.conf.sample
 	$(INSTALL) -d $(DESTDIR)$(INSTALLMANDIR)/man8
 	$(INSTALL) -m 644 $(SRCDIR)/miniupnpd.8 $(DESTDIR)$(INSTALLMANDIR)/man8/miniupnpd.8
 
