diff --git a/ultrasonic/src/main/kotlin/org/moire/ultrasonic/service/OfflineMusicService.kt b/ultrasonic/src/main/kotlin/org/moire/ultrasonic/service/OfflineMusicService.kt
index 0034db0b..27d84aa9 100644
--- a/ultrasonic/src/main/kotlin/org/moire/ultrasonic/service/OfflineMusicService.kt
+++ b/ultrasonic/src/main/kotlin/org/moire/ultrasonic/service/OfflineMusicService.kt
@@ -563,7 +563,7 @@ class OfflineMusicService : MusicService, KoinComponent {
         } catch (ignored: Exception) {
         }
 
-        artist = meta.artist ?: file.parent!!.parent!!.name
+        artist = meta.artist ?: file.parent!!.parent?.name ?: ""
         album = meta.album ?: file.parent!!.name
         title = meta.title ?: title
         isVideo = meta.hasVideo != null