diff --git a/src/main/java/app/services/db/GraphService.java b/src/main/java/app/services/db/GraphService.java
index d013aca..ff066ec 100644
--- a/src/main/java/app/services/db/GraphService.java
+++ b/src/main/java/app/services/db/GraphService.java
@@ -67,7 +67,7 @@ public class GraphService {
         final String sql = "select acc.ts, acc.period, count(acc.value) as value, acc.srv_id from (select date_trunc(:delta, timestamp) AS ts, :delta as period, count(account_id) as value, srv_id, account_id from user_connections " +
                 "                where timestamp between :begindate and :enddate " +
                 "                  and (:account_ids_empty = true or account_id in (:account_ids))" +
-                "                  and connect_duration > 0 " +
+                "                  and connect_duration > 300 " +
                 "                and (:srv_id like '' or srv_id like :srv_id) " +
                 "                group by ts, srv_id, account_id) as acc " +
                 "group by acc.ts, acc.period, acc.srv_id " +