diff --git a/plugins/prebuffer-mixin/src/main.ts b/plugins/prebuffer-mixin/src/main.ts
index 268bbbb17..70f66635f 100644
--- a/plugins/prebuffer-mixin/src/main.ts
+++ b/plugins/prebuffer-mixin/src/main.ts
@@ -1358,7 +1358,7 @@ class PrebufferMixin extends SettingsMixinDeviceBase<VideoCamera> implements Vid
       }
       const name = mso?.name;
       const enabled = enabledIds.includes(id);
-      session = new PrebufferSession(this, mso, enabled, mso.allowBatteryPrebuffer);
+      session = new PrebufferSession(this, mso, enabled, mso?.allowBatteryPrebuffer ?? false);
       this.sessions.set(id, session);
 
       if (!enabled) {