diff --git a/share/doc/papers/memfs/Makefile b/share/doc/papers/memfs/Makefile
index 82c3365ea40..5f05c3e8a6a 100644
--- a/share/doc/papers/memfs/Makefile
+++ b/share/doc/papers/memfs/Makefile
@@ -1,22 +1,22 @@
 #	From: @(#)Makefile	1.8 (Berkeley) 6/8/93
-#	$Id$
+#	$Id: Makefile,v 1.6 1997/02/22 13:03:48 peter Exp $
 
 VOLUME=	papers
 DOC=	memfs
 SRCS=	tmac.srefs paper.t
 MACROS=	-ms
-REFER=	refer -n -e -l -s -p ${.CURDIR}/ref.bib
-EXTRA=	ref.bib A.t tmac.srefs
-CLEANFILES=ref.bib.i A.gt paper.t
+CLEANFILES=A.gt paper.t ref.bib.i
 SRCDIR=	${.OBJDIR}	# ack!
 
-paper.t: 0.t 1.t ${.OBJDIR}/ref.bib.i ${.OBJDIR}/A.gt
-	${REFER} ${.CURDIR}/0.t ${.CURDIR}/1.t A.gt > ${.TARGET}
+A.gt: A.t
+	${GRIND} < ${.ALLSRC} > ${.TARGET}
 
-${.OBJDIR}/ref.bib.i ref.bib.i: ${.CURDIR}/ref.bib
-	${INDXBIB} -c ${.CURDIR}/../../../../contrib/groff/indxbib/eign -o ref.bib ${.CURDIR}/ref.bib
+paper.t: 0.t 1.t ref.bib.i A.gt
+	${REFER} -n -e -l -s -p ${.CURDIR}/ref.bib ${.ALLSRC:Nref.bib.i} \
+	    > ${.TARGET}
 
-${.OBJDIR}/A.gt A.gt: ${.CURDIR}/A.t
-	${GRIND} < ${.CURDIR}/A.t > A.gt
+ref.bib.i: ref.bib
+	${INDXBIB} -c ${.CURDIR}/../../../../contrib/groff/indxbib/eign \
+	    -o ref.bib ${.ALLSRC}
 
 .include <bsd.doc.mk>