diff --git a/include/proto/session.h b/include/proto/session.h
index a18669e..4b86af2 100644
--- a/include/proto/session.h
+++ b/include/proto/session.h
@@ -33,6 +33,8 @@
 /* perform minimal intializations, report 0 in case of error, 1 if OK. */
 int init_session();
 
+void session_process_counters(struct session *s);
+
 #endif /* _PROTO_SESSION_H */
 
 /*
diff --git a/include/types/backend.h b/include/types/backend.h
index 9089469..c0c0809 100644
--- a/include/types/backend.h
+++ b/include/types/backend.h
@@ -57,6 +57,7 @@
 #define	PR_O_TPXY_CIP	0x04000000	/* bind to the client's IP address when connect()ing */
 #define	PR_O_TPXY_CLI	0x06000000	/* bind to the client's IP+port when connect()ing */
 #define	PR_O_TPXY_MASK	0x06000000	/* bind to a non-local address when connect()ing */
+
 #define	PR_O_TCPSPLICE	0x08000000      /* delegate data transfer to linux kernel's tcp_splice */
 
 /* BALANCE: exclusive values */
@@ -68,6 +69,7 @@
 #define PR_O_BALANCE_L7 0x40000000      /* mask to match layer7-based algorithms */
 #define PR_O_BALANCE    0x70000000      /* mask to extract BALANCE algorithm */
 
+#define PR_O_CONTSTATS	0x80000000	/* continous counters */
 
 #endif /* _TYPES_BACKEND_H */