diff --git a/include/proto/server.h b/include/proto/server.h
index 51d1015..9467f69 100644
--- a/include/proto/server.h
+++ b/include/proto/server.h
@@ -253,6 +253,7 @@
 		}
 		LIST_DEL(&conn->list);
 		LIST_ADDQ(&srv->idle_orphan_conns[tid], &conn->list);
+		srv->curr_idle_thr[tid]++;
 
 		conn->idle_time = now_ms;
 		if (!(task_in_wq(srv->idle_task[tid])) &&