diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index 0426693d43..e99dac0266 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -1151,6 +1151,7 @@ static int dca_decode_frame(AVCodecContext * avctx,
     init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
     if (dca_parse_frame_header(s) < 0) {
         //seems like the frame is corrupt, try with the next one
+        *data_size=0;
         return buf_size;
     }
     //set AVCodec values with parsed data