diff --git a/src/rest/get_album.rs b/src/rest/get_album.rs
index 69a1e75..3385c49 100644
--- a/src/rest/get_album.rs
+++ b/src/rest/get_album.rs
@@ -31,7 +31,7 @@ pub async fn get_album(
             duration: 100,
             songs: vec![
                 Child {
-                    id: 111,
+                    id: "tr-111".to_string(),
                     title: "Example - 1".to_string(),
                     album: Some("Example".to_string()),
                     duration: Some(20),
@@ -44,7 +44,7 @@ pub async fn get_album(
                     ..Default::default()
                 },
                 Child {
-                    id: 112,
+                    id: "tr-112".to_string(),
                     title: "Example - 2".to_string(),
                     album: Some("Example".to_string()),
                     duration: Some(20),
@@ -57,7 +57,7 @@ pub async fn get_album(
                     ..Default::default()
                 },
                 Child {
-                    id: 113,
+                    id: "tr-113".to_string(),
                     title: "Example - 3".to_string(),
                     album: Some("Example".to_string()),
                     duration: Some(20),
@@ -70,7 +70,7 @@ pub async fn get_album(
                     ..Default::default()
                 },
                 Child {
-                    id: 114,
+                    id: "tr-114".to_string(),
                     title: "Example - 4".to_string(),
                     album: Some("Example".to_string()),
                     duration: Some(20),
@@ -83,7 +83,7 @@ pub async fn get_album(
                     ..Default::default()
                 },
                 Child {
-                    id: 115,
+                    id: "tr-115".to_string(),
                     title: "Example - 5".to_string(),
                     album: Some("Example".to_string()),
                     duration: Some(20),
diff --git a/src/rest/get_album_list.rs b/src/rest/get_album_list.rs
index c79ed9d..2ab6568 100644
--- a/src/rest/get_album_list.rs
+++ b/src/rest/get_album_list.rs
@@ -29,7 +29,7 @@ pub async fn get_album_list(
 
     let album_list = vec![
         Child {
-            id: 11,
+            id: "al-11".to_string(),
             parent: Some(1),
             title: "Example".to_string(),
             artist: Some("Example".to_string()),
@@ -37,7 +37,7 @@ pub async fn get_album_list(
             ..Default::default()
         },
         Child {
-            id: 12,
+            id: "al-12".to_string(),
             parent: Some(1),
             title: "Example 2".to_string(),
             artist: Some("Example 2".to_string()),
diff --git a/src/subsonic.rs b/src/subsonic.rs
index 72a83b0..2458832 100644
--- a/src/subsonic.rs
+++ b/src/subsonic.rs
@@ -3,7 +3,7 @@
 use std::fmt::Display;
 
 use poem::{http::StatusCode, IntoResponse, Response};
-use serde::{ser::SerializeStruct, Serialize};
+use serde::{ser::SerializeStruct, Serialize, Serializer};
 use time::OffsetDateTime;
 
 use crate::authentication::VersionTriple;
@@ -99,7 +99,7 @@ pub enum SubResponseType {
 
 #[derive(Debug, Clone, Serialize, Default)]
 pub struct AlbumId3 {
-    #[serde(rename = "@id")]
+    #[serde(rename = "@id", serialize_with = "album_id")]
     pub id: i32,
     #[serde(rename = "@parent")]
     pub name: String,
@@ -127,11 +127,18 @@ pub struct AlbumId3 {
     pub songs: Vec<Child>,
 }
 
+#[allow(clippy::trivially_copy_pass_by_ref)]
+fn album_id<S: Serializer>(id: &i32, s: S) -> Result<S::Ok, S::Error> {
+    let str = format!("al-{id}");
+
+    s.serialize_str(&str)
+}
+
 #[derive(Debug, Clone, Serialize, Default)]
 #[serde(default)]
 pub struct Child {
     #[serde(rename = "@id")]
-    pub id: i32,
+    pub id: String,
     #[serde(rename = "@parent", skip_serializing_if = "Option::is_none")]
     pub parent: Option<i32>,
     #[serde(rename = "@isDir")]