diff --git a/include/types/connection.h b/include/types/connection.h
index f1fd7a0..b273ece 100644
--- a/include/types/connection.h
+++ b/include/types/connection.h
@@ -196,6 +196,8 @@
 	/* This flag is used to know that a PROXY protocol header was sent by the client */
 	CO_FL_RCVD_PROXY    = 0x20000000,
 
+	/* The connection is unused by its owner */
+	CO_FL_SESS_IDLE     = 0x40000000,
 	/* unused : 0x40000000 */
 
 	/* This last flag indicates that the transport layer is used (for instance
diff --git a/include/types/session.h b/include/types/session.h
index 1675f8f..328372d 100644
--- a/include/types/session.h
+++ b/include/types/session.h
@@ -55,7 +55,7 @@
 	struct vars vars;               /* list of variables for the session scope. */
 	struct task *task;              /* handshake timeout processing */
 	long t_handshake;               /* handshake duration, -1 = not completed */
-	int resp_conns;                 /* Number of connections we're currently responsible for */
+	int idle_conns;                 /* Number of connections we're currently responsible for that we are not using */
 	struct list srv_list;           /* List of servers and the connections the session is currently responsible for */
 };