diff --git a/libavcodec/cpia.c b/libavcodec/cpia.c
index bf09e1a5db..5f12a99a83 100644
--- a/libavcodec/cpia.c
+++ b/libavcodec/cpia.c
@@ -230,4 +230,5 @@ AVCodec ff_cpia_decoder = {
     .close          = cpia_decode_end,
     .decode         = cpia_decode_frame,
     .capabilities   = AV_CODEC_CAP_DR1,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
 };