diff --git a/src/coex/exchange_team.rs b/src/coex/exchange_team.rs
index d391f9c..1dd338e 100644
--- a/src/coex/exchange_team.rs
+++ b/src/coex/exchange_team.rs
@@ -132,7 +132,6 @@ pub async fn buy_coin(
             // 600_000 (600 secs = 10 mins)
             {
                 filtered_suggested_coin_vec.push(element);
-                is_exist_delete_symbol = false;
             } else if server_epoch - element.registered_server_epoch > 600_000 {
                 delete_condition.push_str("id = ");
                 delete_condition.push_str(element.id.to_string().as_str());