song: pass const song pointer to song_get_url()

song_get_url() doesn't modify the song object.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/song.h b/src/song.h
index f1e88921..7d174c51 100644
--- a/src/song.h
+++ b/src/song.h
@@ -65,7 +65,7 @@ song_file_update(struct song *song);
  * terminating '\0').
  */
 char *
-song_get_url(struct song *song, char *path_max_tmp);
+song_get_url(const struct song *song, char *path_max_tmp);
 
 static inline bool
 song_is_file(const struct song *song)