diff --git a/openlp/plugins/songs/lib/olpimport.py b/openlp/plugins/songs/lib/olpimport.py
index d38c8c9d8..f4b066ef0 100644
--- a/openlp/plugins/songs/lib/olpimport.py
+++ b/openlp/plugins/songs/lib/olpimport.py
@@ -187,7 +187,7 @@ class OpenLPSongImport(SongImport):
                         first_name=author.first_name,
                         last_name=author.last_name,
                         display_name=author.display_name)
-                new_song.authors.add_author(existing_author)
+                new_song.add_author(existing_author)
             if song.book:
                 existing_song_book = self.manager.get_object_filtered(Book, Book.name == song.book.name)
                 if existing_song_book is None:
diff --git a/openlp/plugins/songs/lib/songimport.py b/openlp/plugins/songs/lib/songimport.py
index c4fda6120..754288546 100644
--- a/openlp/plugins/songs/lib/songimport.py
+++ b/openlp/plugins/songs/lib/songimport.py
@@ -325,7 +325,7 @@ class SongImport(QtCore.QObject):
                 author = Author.populate(display_name=author_text,
                                          last_name=author_text.split(' ')[-1],
                                          first_name=' '.join(author_text.split(' ')[:-1]))
-            song.authors.add_author(author)
+            song.add_author(author)
         if self.song_book_name:
             song_book = self.manager.get_object_filtered(Book, Book.name == self.song_book_name)
             if song_book is None:
diff --git a/openlp/plugins/songs/lib/songselect.py b/openlp/plugins/songs/lib/songselect.py
index b75caa654..195f542aa 100644
--- a/openlp/plugins/songs/lib/songselect.py
+++ b/openlp/plugins/songs/lib/songselect.py
@@ -203,6 +203,6 @@ class SongSelectImport(object):
                 author = Author.populate(first_name=author_name.rsplit(' ', 1)[0],
                                          last_name=author_name.rsplit(' ', 1)[1],
                                          display_name=author_name)
-            db_song.authors.add_author(author)
+            db_song.add_author(author)
         self.db_manager.save_object(db_song)
         return db_song