diff --git a/src/helper/xvb/priv_stats.rs b/src/helper/xvb/priv_stats.rs
index 59441db..e3fa335 100644
--- a/src/helper/xvb/priv_stats.rs
+++ b/src/helper/xvb/priv_stats.rs
@@ -47,6 +47,7 @@ pub struct XvbPrivStats {
     #[serde(skip)]
     // so the hero mode can change between two decision of algorithm without restarting XvB.
     pub runtime_mode: RuntimeMode,
+    #[serde(skip)]
     pub runtime_manual_amount: u64
 }