diff --git a/configure/CONFIG_SITE b/configure/CONFIG_SITE
index d669cbb..674abe7 100644
--- a/configure/CONFIG_SITE
+++ b/configure/CONFIG_SITE
@@ -24,6 +24,7 @@
 # define INSTALL_LOCATION here
 #INSTALL_LOCATION=<fullpathname>
 
+USR_INCLUDES += -I/usr/include/boost/tr1 
 INSTALL_INCLUDE = $(INSTALL_LOCATION)/include/pv
 USR_INCLUDES += -I $(INSTALL_LOCATION)/include