diff --git a/libavcodec/speexdec.c b/libavcodec/speexdec.c
index 35270e6723..fccceab74c 100644
--- a/libavcodec/speexdec.c
+++ b/libavcodec/speexdec.c
@@ -1586,5 +1586,5 @@ const AVCodec ff_speex_decoder = {
     .close          = speex_decode_close,
     .capabilities   = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_CHANNEL_CONF,
     .priv_data_size = sizeof(SpeexContext),
-    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
 };