diff --git a/README.md b/README.md
index 5e3a32517..03a8ae155 100755
--- a/README.md
+++ b/README.md
@@ -234,6 +234,7 @@ Please select according to languages:
 
 ### V2 changes
 
+* v2.0, 2018-10-08, Merge [#1237][bug #1237], Support param for transcoder. 2.0.256
 * <strong>v2.0, 2018-08-12, [2.0 release4(2.0.255)][r2.0r4] released. 86915 lines.</strong>
 * v2.0, 2018-08-12, For [#1202][bug #1202], Support edge/forward to Aliyun CDN. 2.0.255 
 * v2.0, 2018-08-11, For [#910][bug #910], Support HTTP FLV with HTTP callback. 2.0.254
@@ -1453,6 +1454,7 @@ Winlin
 [bug #1110]: https://github.com/ossrs/srs/issues/1110
 [bug #910]: https://github.com/ossrs/srs/issues/910
 [bug #1202]: https://github.com/ossrs/srs/issues/1202
+[bug #1237]: https://github.com/ossrs/srs/issues/1237
 [bug #xxxxxxxxxx]: https://github.com/ossrs/srs/issues/xxxxxxxxxx
 
 [bug #735]: https://github.com/ossrs/srs/issues/735
diff --git a/trunk/src/app/srs_app_encoder.cpp b/trunk/src/app/srs_app_encoder.cpp
index ef7baac70..00370f93b 100644
--- a/trunk/src/app/srs_app_encoder.cpp
+++ b/trunk/src/app/srs_app_encoder.cpp
@@ -282,6 +282,7 @@ srs_error_t SrsEncoder::initialize_ffmpeg(SrsFFMPEG* ffmpeg, SrsRequest* req, Sr
     output = srs_string_replace(output, "[port]", srs_int2str(req->port));
     output = srs_string_replace(output, "[app]", req->app);
     output = srs_string_replace(output, "[stream]", req->stream);
+    output = srs_string_replace(output, "[param]", req->param);
     output = srs_string_replace(output, "[engine]", engine->arg0());
     
     std::string log_file = SRS_CONSTS_NULL_FILE; // disabled