diff --git a/src/web/public/constants.js b/src/web/public/constants.js
index f7f37803..a9cd62b9 100644
--- a/src/web/public/constants.js
+++ b/src/web/public/constants.js
@@ -42,7 +42,7 @@ function urlBase64ToUint8Array(base64String) {
 // ═══════════════════════════════════════════════════════════════
 
 // Default terminal scrollback (can be changed via settings)
-const DEFAULT_SCROLLBACK = 5000;
+const DEFAULT_SCROLLBACK = 20000;
 
 // Timing constants
 const STUCK_THRESHOLD_DEFAULT_MS = 600000;  // 10 minutes - default for stuck detection