diff --git a/src/smapi.ts b/src/smapi.ts
index f5abc66..4064d97 100644
--- a/src/smapi.ts
+++ b/src/smapi.ts
@@ -471,9 +471,9 @@ function bindSmapiSoapServiceToExpress(
                           title: it.name,
                           mimeType: it.mimeType,
                           trackMetadata: {
-                            artistId: it.artist.id,
+                            artistId: `artist:${it.artist.id}`,
                             artist: it.artist.name,
-                            albumId: it.album.id,
+                            albumId: `album:${it.album.id}`,
                             album: it.album.name,
                             genre: it.genre?.name,
                             genreId: it.genre?.id,
diff --git a/tests/smapi.test.ts b/tests/smapi.test.ts
index a12b78b..e704fd3 100644
--- a/tests/smapi.test.ts
+++ b/tests/smapi.test.ts
@@ -1956,9 +1956,9 @@ describe("api", () => {
                   title: track.name,
                   mimeType: track.mimeType,
                   trackMetadata: {
-                    artistId: track.artist.id,
+                    artistId: `artist:${track.artist.id}`,
                     artist: track.artist.name,
-                    albumId: track.album.id,
+                    albumId: `album:${track.album.id}`,
                     album: track.album.name,
                     genre: track.genre?.name,
                     genreId: track.genre?.id,