diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c
index 75cd1c7133..f96ed3abe4 100644
--- a/libavcodec/dnxhdenc.c
+++ b/libavcodec/dnxhdenc.c
@@ -845,6 +845,6 @@ AVCodec dnxhd_encoder = {
     dnxhd_encode_init,
     dnxhd_encode_picture,
     dnxhd_encode_end,
-    .pix_fmts = (enum PixelFormat[]){PIX_FMT_YUV422P, -1},
+    .pix_fmts = (enum PixelFormat[]){PIX_FMT_YUV422P, PIX_FMT_NONE},
     .long_name = "VC3/DNxHD",
 };