--- beef-0.0.6.orig/Makefile
+++ beef-0.0.6/Makefile
@@ -3,9 +3,9 @@
 CC = gcc
 CFLAGS = -Wall -ansi -pedantic -O2
 
-PREFIX = /usr
-MANDIR = /usr/share/man/man1
-DOCDIR = /usr/share/doc/beef
+PREFIX = $(DESTDIR)/usr
+MANDIR = $(DESTDIR)/usr/share/man/man1
+DOCDIR = $(DESTDIR)/usr/share/doc/beef
 
 TARGETS = src/main.o src/new_cell.o src/load.o src/eval.o \
 src/tape_dump.o src/code_dump.o