diff --git a/include/proto/server.h b/include/proto/server.h
index 93f4f81..750d8d5 100644
--- a/include/proto/server.h
+++ b/include/proto/server.h
@@ -25,14 +25,17 @@
 #include <unistd.h>
 
 #include <common/config.h>
+#include <common/time.h>
 #include <types/proxy.h>
 #include <types/queue.h>
 #include <types/server.h>
 
 #include <proto/queue.h>
+#include <proto/log.h>
 #include <proto/freq_ctr.h>
 
 int srv_downtime(const struct server *s);
+int srv_lastsession(const struct server *s);
 int srv_getinter(const struct check *check);
 
 /* increase the number of cumulated connections on the designated server */
@@ -44,6 +47,12 @@
 		s->counters.sps_max = s->sess_per_sec.curr_ctr;
 }
 
+/* set the time of last session on the designated server */
+static void inline srv_set_sess_last(struct server *s)
+{
+	s->counters.last_sess = now.tv_sec;
+}
+
 #endif /* _PROTO_SERVER_H */
 
 /*