diff --git a/libavcodec/notchlc.c b/libavcodec/notchlc.c
index c109c5f6f3..be28161995 100644
--- a/libavcodec/notchlc.c
+++ b/libavcodec/notchlc.c
@@ -547,4 +547,5 @@ const AVCodec ff_notchlc_decoder = {
     .close            = decode_end,
     .decode           = decode_frame,
     .capabilities     = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
+    .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE,
 };