Index: src/Makefile
--- src/Makefile.orig
+++ src/Makefile
@@ -1,5 +1,5 @@
 # use -DGENHT_WANT_INLINE to turn half of the API into static inline functions
-PREFIX=/usr
+PREFIX=/usr/local
 INCDIR=$(install_root)$(DESTDIR)$(PREFIX)/include/genht
 LIBDIR=$(install_root)$(DESTDIR)$(PREFIX)/lib
 
