diff --git a/libavcodec/lcldec.c b/libavcodec/lcldec.c
index abc04e35dc..104defa5f5 100644
--- a/libavcodec/lcldec.c
+++ b/libavcodec/lcldec.c
@@ -460,6 +460,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
         return AVERROR_INVALIDDATA;
     }
 
+    frame->key_frame = 1;
+    frame->pict_type = AV_PICTURE_TYPE_I;
+
     *got_frame = 1;
 
     /* always report that the buffer was completely consumed */