diff --git a/libavformat/asf-enc.c b/libavformat/asf-enc.c
index 0e9aa9df45..ef2dd278a9 100644
--- a/libavformat/asf-enc.c
+++ b/libavformat/asf-enc.c
@@ -680,8 +680,6 @@ static void put_frame(
             // multi payloads
             frag_len1 = asf->packet_size_left - PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS - PACKET_HEADER_MIN_SIZE - 1;
 
-            asf->packet_timestamp_start = timestamp;
-
             if(frag_len1 < payload_len && avst->codec->codec_type == CODEC_TYPE_AUDIO){
                 flush_packet(s);
                 continue;
diff --git a/tests/ffmpeg.regression.ref b/tests/ffmpeg.regression.ref
index 09b668eb97..b648609e48 100644
--- a/tests/ffmpeg.regression.ref
+++ b/tests/ffmpeg.regression.ref
@@ -192,11 +192,11 @@ c3382f03ce2efb5d475240d288a33898 *./tests/data/a-flac.flac
 353368 ./tests/data/a-flac.flac
 c4228df189aad9567a037727d0e763e4 *./tests/data/out.wav
 stddev: 33.31 PSNR:65.87 bytes:1040384
-0c406c4e4586ca27064e28637b662631 *./tests/data/a-wmav1.asf
+a1e56bb034c2773438ba1c830c4cea07 *./tests/data/a-wmav1.asf
 106004 ./tests/data/a-wmav1.asf
 stddev:12251.50 PSNR:14.56 bytes:1056768
 stddev:2106.00 PSNR:29.85 bytes:1048576
-82442aaa5fdbd327769e4c4ad369147e *./tests/data/a-wmav2.asf
+5e25c447c80fa937f74ed8752b0e26fb *./tests/data/a-wmav2.asf
 106044 ./tests/data/a-wmav2.asf
 stddev:12255.92 PSNR:14.55 bytes:1056768
 stddev:2099.31 PSNR:29.88 bytes:1048576
diff --git a/tests/libav.regression.ref b/tests/libav.regression.ref
index 67c776a52e..f3a12f51f9 100644
--- a/tests/libav.regression.ref
+++ b/tests/libav.regression.ref
@@ -2,7 +2,7 @@ ffmpeg regression test
 8a0536ccfe36f4fff408b3327d33e1dd *./tests/data/b-libav.avi
 340344 ./tests/data/b-libav.avi
 ./tests/data/b-libav.avi CRC=0x400c29e9
-786446e80ead936e5faa8f5908f19281 *./tests/data/b-libav.asf
+7b859661e93df32e51942a4e0531d58e *./tests/data/b-libav.asf
 339775 ./tests/data/b-libav.asf
 ./tests/data/b-libav.asf CRC=0x74113749
 c351132527ccb1e8cab06cc0822fde23 *./tests/data/b-libav.rm
diff --git a/tests/rotozoom.regression.ref b/tests/rotozoom.regression.ref
index 106c6a0da5..d6396f38b3 100644
--- a/tests/rotozoom.regression.ref
+++ b/tests/rotozoom.regression.ref
@@ -192,11 +192,11 @@ c3382f03ce2efb5d475240d288a33898 *./tests/data/a-flac.flac
 353368 ./tests/data/a-flac.flac
 c4228df189aad9567a037727d0e763e4 *./tests/data/out.wav
 stddev: 33.31 PSNR:65.87 bytes:1040384
-0c406c4e4586ca27064e28637b662631 *./tests/data/a-wmav1.asf
+a1e56bb034c2773438ba1c830c4cea07 *./tests/data/a-wmav1.asf
 106004 ./tests/data/a-wmav1.asf
 stddev:12251.50 PSNR:14.56 bytes:1056768
 stddev:2106.00 PSNR:29.85 bytes:1048576
-82442aaa5fdbd327769e4c4ad369147e *./tests/data/a-wmav2.asf
+5e25c447c80fa937f74ed8752b0e26fb *./tests/data/a-wmav2.asf
 106044 ./tests/data/a-wmav2.asf
 stddev:12255.92 PSNR:14.55 bytes:1056768
 stddev:2099.31 PSNR:29.88 bytes:1048576