diff --git a/config.mk b/config.mk
index 566348b..1673962 100644
--- a/config.mk
+++ b/config.mk
@@ -2,11 +2,11 @@
 VERSION = 5.2
 
 # paths
-PREFIX = /usr/local
+PREFIX = /usr
 MANPREFIX = $(PREFIX)/share/man
 
-X11INC = /usr/X11R6/include
-X11LIB = /usr/X11R6/lib
+X11INC = /usr/include/X11
+X11LIB = /usr/lib64
 
 # Xinerama, comment if you don't want it
 XINERAMALIBS  = -lXinerama