diff --git a/libavcodec/frwu.c b/libavcodec/frwu.c
index 90ffc79a0c..c70013b622 100644
--- a/libavcodec/frwu.c
+++ b/libavcodec/frwu.c
@@ -66,8 +66,6 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
 
     pic->pict_type = AV_PICTURE_TYPE_I;
     pic->key_frame = 1;
-    pic->interlaced_frame = 1;
-    pic->top_field_first = 1;
 
     for (field = 0; field < 2; field++) {
         int i;