--- trinity-1.5.orig/Makefile	2015-03-02 17:08:20.000000000 +0100
+++ trinity-1.5/Makefile	2015-03-19 17:23:36.000000000 +0100
@@ -1,6 +1,6 @@
 VERSION="1.5"
 
-INSTALL_PREFIX ?= $(DESTDIR)
+INSTALL_PREFIX ?= $(DESTDIR)/usr
 INSTALL_PREFIX ?= $(HOME)
 NR_CPUS := $(shell grep ^processor /proc/cpuinfo | /usr/bin/wc -l)
 
