diff --git a/subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiGetPlaylistTest.kt b/subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiGetPlaylistTest.kt
index c9d248d7..f7360eec 100644
--- a/subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiGetPlaylistTest.kt
+++ b/subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiGetPlaylistTest.kt
@@ -29,7 +29,7 @@ class SubsonicApiGetPlaylistTest : SubsonicAPIClientTest() {
 
         assertResponseSuccessful(response)
         with(response.body().playlist) {
-            id `should equal to` 0
+            id `should equal to` "0"
             name `should equal to` "Aug 27, 2017 11:17 AM"
             owner `should equal to` "admin"
             public `should equal to` false
diff --git a/subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiGetPlaylistsTest.kt b/subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiGetPlaylistsTest.kt
index dc9794ee..f787c37c 100644
--- a/subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiGetPlaylistsTest.kt
+++ b/subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiGetPlaylistsTest.kt
@@ -29,7 +29,7 @@ class SubsonicApiGetPlaylistsTest : SubsonicAPIClientTest() {
         assertResponseSuccessful(response)
         with(response.body().playlists) {
             size `should equal to` 1
-            this[0] `should equal` Playlist(id = 0, name = "Aug 27, 2017 11:17 AM",
+            this[0] `should equal` Playlist(id = "0", name = "Aug 27, 2017 11:17 AM",
                     owner = "admin", public = false, songCount = 16, duration = 3573,
                     comment = "Some comment",
                     created = parseDate("2017-08-27T11:17:26.216Z"),
diff --git a/subsonic-api/src/main/kotlin/org/moire/ultrasonic/api/subsonic/models/Playlist.kt b/subsonic-api/src/main/kotlin/org/moire/ultrasonic/api/subsonic/models/Playlist.kt
index 04186edf..ce3c41be 100644
--- a/subsonic-api/src/main/kotlin/org/moire/ultrasonic/api/subsonic/models/Playlist.kt
+++ b/subsonic-api/src/main/kotlin/org/moire/ultrasonic/api/subsonic/models/Playlist.kt
@@ -4,7 +4,7 @@ import com.fasterxml.jackson.annotation.JsonProperty
 import java.util.Calendar
 
 data class Playlist(
-        val id: Long = -1,
+        val id: String = "",
         val name: String = "",
         val owner: String = "",
         val comment: String = "",
diff --git a/ultrasonic/src/main/kotlin/org/moire/ultrasonic/data/APIPlaylistConverter.kt b/ultrasonic/src/main/kotlin/org/moire/ultrasonic/data/APIPlaylistConverter.kt
index 28c6e678..a096fca1 100644
--- a/ultrasonic/src/main/kotlin/org/moire/ultrasonic/data/APIPlaylistConverter.kt
+++ b/ultrasonic/src/main/kotlin/org/moire/ultrasonic/data/APIPlaylistConverter.kt
@@ -16,7 +16,7 @@ fun APIPlaylist.toMusicDirectoryDomainEntity(): MusicDirectory = MusicDirectory(
     addAll(this@toMusicDirectoryDomainEntity.entriesList.map { it.toDomainEntity() })
 }
 
-fun APIPlaylist.toDomainEntity(): Playlist = Playlist(this.id.toString(), this.name, this.owner,
+fun APIPlaylist.toDomainEntity(): Playlist = Playlist(this.id, this.name, this.owner,
         this.comment, this.songCount.toString(),
         this.created?.let { playlistDateFormat.format(it.time) },
         public.toString())
diff --git a/ultrasonic/src/test/kotlin/org/moire/ultrasonic/data/APIPlaylistConverterTest.kt b/ultrasonic/src/test/kotlin/org/moire/ultrasonic/data/APIPlaylistConverterTest.kt
index 4f1be508..aefdd264 100644
--- a/ultrasonic/src/test/kotlin/org/moire/ultrasonic/data/APIPlaylistConverterTest.kt
+++ b/ultrasonic/src/test/kotlin/org/moire/ultrasonic/data/APIPlaylistConverterTest.kt
@@ -32,7 +32,7 @@ class APIPlaylistConverterTest {
 
     @Test
     fun `Should convert playlist to domain entity`() {
-        val entity = Playlist(id = 634, name = "some-name", owner = "some-owner",
+        val entity = Playlist(id = "634", name = "some-name", owner = "some-owner",
                 comment = "some-comment", public = false, songCount = 256, duration = 1150,
                 created = Calendar.getInstance(), changed = Calendar.getInstance(),
                 coverArt = "some-art")
@@ -40,7 +40,7 @@ class APIPlaylistConverterTest {
         val convertedEntity = entity.toDomainEntity()
 
         with(convertedEntity) {
-            id `should equal to` entity.id.toString()
+            id `should equal to` entity.id
             name `should equal to` entity.name
             comment `should equal to` entity.comment
             owner `should equal to` entity.owner
@@ -52,7 +52,7 @@ class APIPlaylistConverterTest {
 
     @Test
     fun `Should convert list of playlists to list of domain entities`() {
-        val entitiesList = listOf(Playlist(id = 23, name = "some-name", songCount = 10))
+        val entitiesList = listOf(Playlist(id = "23", name = "some-name", songCount = 10))
 
         val convertedList = entitiesList.toDomainEntitiesList()