diff --git a/core/artwork/reader_artist.go b/core/artwork/reader_artist.go
index 5b52ed18..33079314 100644
--- a/core/artwork/reader_artist.go
+++ b/core/artwork/reader_artist.go
@@ -64,7 +64,7 @@ func newArtistReader(ctx context.Context, artwork *artwork, artID model.ArtworkI
 func (a *artistReader) Key() string {
 	hash := md5.Sum([]byte(conf.Server.Agents + conf.Server.Spotify.ID))
 	return fmt.Sprintf(
-		"%s.%x.%t",
+		"%s.%x.%t ",
 		a.cacheKey.Key(),
 		hash,
 		conf.Server.EnableExternalServices,