diff --git a/libavformat/rtpenc.c b/libavformat/rtpenc.c
index d09b22f9f8590443cf4a551e253b3fe88b46a893..31569d60b7c496b9eb27f862c05d2f9d659841c1 100644
--- a/libavformat/rtpenc.c
+++ b/libavformat/rtpenc.c
@@ -561,10 +561,6 @@ static int rtp_write_packet(AVFormatContext *s1, AVPacket *pkt)
             const uint8_t *mb_info =
                 av_packet_get_side_data(pkt, AV_PKT_DATA_H263_MB_INFO,
                                         &mb_info_size);
-            if (!mb_info) {
-                av_log(s1, AV_LOG_ERROR, "failed to allocate side data\n");
-                return AVERROR(ENOMEM);
-            }
             ff_rtp_send_h263_rfc2190(s1, pkt->data, size, mb_info, mb_info_size);
             break;
         }