--- a/Makefile
+++ b/Makefile
@@ -33,12 +33,12 @@ LL2      = -L. -lpigpiod_if -pthread -lrt
 
 LL3      = -L. -lpigpiod_if2 -pthread -lrt
 
-prefix = /usr/local
+prefix = /usr
 exec_prefix = $(prefix)
 bindir = $(exec_prefix)/bin
 includedir = $(prefix)/include
 libdir = $(prefix)/lib
-mandir = $(prefix)/man
+mandir = $(prefix)/share/man
 
 all:	$(ALL)