diff --git a/android/app/src/main/java/com/fabledsword/minstrel/player/output/upnp/AVTransportClient.kt b/android/app/src/main/java/com/fabledsword/minstrel/player/output/upnp/AVTransportClient.kt
index 8033323f..61e2a2ad 100644
--- a/android/app/src/main/java/com/fabledsword/minstrel/player/output/upnp/AVTransportClient.kt
+++ b/android/app/src/main/java/com/fabledsword/minstrel/player/output/upnp/AVTransportClient.kt
@@ -204,13 +204,18 @@ class AVTransportClient(
     }
 
     private fun buildDidlLite(uri: String, mime: String, title: String): String {
+        // Sonos firmware accepts boolean-style restricted ("true"/"false") only
+        // and rejects "1"/"0" silently; if it can't parse our DIDL it regenerates
+        // its own with generic class object.item, no title, and the URL query
+        // string as the displayed name (logcat 2026-06-04 confirmed). Match the
+        // SoCo convention which the firmware definitely accepts.
         val safeTitle = title.ifBlank { "Minstrel" }
         return buildString {
             append("<DIDL-Lite ")
             append("xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" ")
             append("xmlns:dc=\"http://purl.org/dc/elements/1.1/\" ")
             append("xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\">")
-            append("<item id=\"0\" parentID=\"-1\" restricted=\"1\">")
+            append("<item id=\"-1\" parentID=\"-1\" restricted=\"true\">")
             append("<dc:title>").append(xmlEscape(safeTitle)).append("</dc:title>")
             append("<upnp:class>object.item.audioItem.musicTrack</upnp:class>")
             append("<res protocolInfo=\"http-get:*:").append(xmlEscape(mime))