diff --git a/libavcodec/roqvideodec.c b/libavcodec/roqvideodec.c
index a2730af922..a3217035e3 100644
--- a/libavcodec/roqvideodec.c
+++ b/libavcodec/roqvideodec.c
@@ -243,5 +243,5 @@ const AVCodec ff_roq_decoder = {
     .close          = roq_decode_end,
     .decode         = roq_decode_frame,
     .capabilities   = AV_CODEC_CAP_DR1,
-    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
 };