diff --git a/libavcodec/flacenc.c b/libavcodec/flacenc.c
index 34fcd95795..05a85d830f 100644
--- a/libavcodec/flacenc.c
+++ b/libavcodec/flacenc.c
@@ -1513,4 +1513,5 @@ AVCodec ff_flac_encoder = {
                                                      AV_SAMPLE_FMT_S32,
                                                      AV_SAMPLE_FMT_NONE },
     .priv_class     = &flac_encoder_class,
+    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
 };