diff --git a/lib/cdda_interface/libcdio_cdda.sym b/lib/cdda_interface/libcdio_cdda.sym
index a0801b62..4ab934ad 100644
--- a/lib/cdda_interface/libcdio_cdda.sym
+++ b/lib/cdda_interface/libcdio_cdda.sym
@@ -20,3 +20,4 @@ cdio_cddap_track_preemp
 cdio_cddap_disc_firstsector
 cdio_cddap_disc_lastsector
 data_bigendianp
+fft_forward