diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index c2fff7cb72..1732c9b4bf 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -712,8 +712,10 @@ Set the maximum demux-decode delay.
 @item -muxpreload @var{seconds}
 Set the initial demux-decode delay.
 @item -streamid @var{output-stream-index}:@var{new-value}
-Assign a new value to a stream's stream-id field in the next output file.
-All stream-id fields are reset to default for each output file.
+Assign a new stream-id value to an output stream. This option should be
+specified prior to the output filename to which it applies.
+For the situation where multiple output files exist, a streamid
+may be reassigned to a different value.
 
 For example, to set the stream 0 PID to 33 and the stream 1 PID to 36 for
 an output mpegts file:
diff --git a/ffmpeg.c b/ffmpeg.c
index 7cce343547..0b2bab2cec 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3816,7 +3816,6 @@ static void opt_output_file(const char *filename)
 
     set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM, NULL);
 
-    nb_streamid_map = 0;
     av_freep(&forced_key_frames);
 }