diff --git a/src/common/conf.rs b/src/common/conf.rs
index d39d49a..f7d9f81 100644
--- a/src/common/conf.rs
+++ b/src/common/conf.rs
@@ -11,7 +11,7 @@ use libpt::log::{error, trace};
 
 const DEFAULT_TIMEOUT_LEN: u64 = 5000; // ms
 const DEFAULT_DELAY_LEN: u64 = 500; // ms
-const DEFAULT_WIN_AFTER: usize = 20;
+const DEFAULT_WIN_AFTER: usize = 0x10;
 
 #[derive(Clone)]
 pub struct Config {