diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 03340efa09..8806c6a598 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -325,6 +325,8 @@ void avcodec_register_all(void)
     REGISTER_DECODER (SHORTEN, shorten);
     REGISTER_DECODER (SIPR, sipr);
     REGISTER_DECODER (SMACKAUD, smackaud);
+    REGISTER_ENCDEC  (SONIC, sonic);
+    REGISTER_ENCODER (SONIC_LS, sonic_ls);
     REGISTER_DECODER (TRUEHD, truehd);
     REGISTER_DECODER (TRUESPEECH, truespeech);
     REGISTER_DECODER (TTA, tta);