diff --git a/Makefile b/Makefile
index c3b90ba..8beb0e8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,5 @@
 .POSIX:
+PREFIX = /usr
 
 TARGETS =  	libeditline.so  	libeditline.so.1  	libeditline.so.1.0.2  	libeditline.a