From 7f419f3114ef13c4111d1fd2cd7aceb2ee077da6 Mon Sep 17 00:00:00 2001
From: SteveMicroNova <steve@micro-nova.com>
Date: Fri, 7 Aug 2026 15:53:32 -0400
Subject: [PATCH] Define ID in App.jsx

---
 CHANGELOG.md    | 1 +
 web/src/App.jsx | 3 +--
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc553efe5..4cc8bea32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
   * Disabled USB autosuspend for the CM6206 USB audio device
 * Web App
   * Add warning for older versions of the webapp running on newer backends
+  * Solve bug relating to single-zone groups
 
 # 0.4.11
 * System
diff --git a/web/src/App.jsx b/web/src/App.jsx
index 27a925178..90dafb3d2 100644
--- a/web/src/App.jsx
+++ b/web/src/App.jsx
@@ -245,8 +245,7 @@ const updateGroupVols = (s) => {
             let calculated_vol = Math.min(...vols) * 0.5 + Math.max(...vols) * 0.5;
             g.vol_f = calculated_vol;
         } else if (g.zones.length == 1) {
-            // ID is not defined, needs fixed
-            g.vol_f = s.status.zones[id].vol_f;
+            g.vol_f = s.status.zones[g.zones[0]].vol_f;
         }
     });
 };