diff --git a/trunk/doc/CHANGELOG.md b/trunk/doc/CHANGELOG.md
index 41c1c2d8ef..983d2f9c84 100644
--- a/trunk/doc/CHANGELOG.md
+++ b/trunk/doc/CHANGELOG.md
@@ -8,6 +8,7 @@ The changelog for SRS.
 
 ## SRS 4.0 Changelog
 
+* v4.0, 2021-12-23, For [#2711](https://github.com/ossrs/srs/issues/2711), Refine the default config file. (#2711). v4.0.208
 * v4.0, 2021-12-20, Merge [#2784](https://github.com/ossrs/srs/pull/2784): RTC: Support payload name AV1X/AV1. (#2784)(#2760). v4.0.207
 * v4.0, 2021-12-07, Merge [#2771](https://github.com/ossrs/srs/pull/2771): RTC: Fix memory leak when replace rtp packet in cache. (#2771). v4.0.205
 * v4.0, 2021-12-06, Merge [#2766](https://github.com/ossrs/srs/pull/2766): RTC: Fix nack encode seqnum. (#2766). v4.0.204
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 335c11bf10..fa813737ce 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -1982,23 +1982,22 @@ srs_error_t SrsConfig::parse_options(int argc, char** argv)
     srs_trace(_srs_version);
 
     // Try config files as bellow:
-    //      config_file Specified by user, like conf/srs.conf
-    //      try_docker_config Guess by SRS, like conf/docker.conf
-    //      try_fhs_config For FHS, try /etc/srs/srs.conf first, @see https://github.com/ossrs/srs/pull/2711
-    if (!srs_path_exists(config_file)) {
+    //      User specified config(not empty), like user/docker.conf
+    //      If user specified *docker.conf, try *srs.conf, like user/srs.conf
+    //      Try the default srs config, defined as SRS_CONF_DEFAULT_COFNIG_FILE, like conf/srs.conf
+    //      Try config for FHS, like /etc/srs/srs.conf @see https://github.com/ossrs/srs/pull/2711
+    if (true) {
         vector<string> try_config_files;
         if (!config_file.empty()) {
             try_config_files.push_back(config_file);
-            if (srs_string_ends_with(config_file, "docker.conf")) {
-                try_config_files.push_back(srs_string_replace(config_file, "docker.conf", "srs.conf"));
-            }
         }
-        try_config_files.push_back(SRS_CONF_DEFAULT_COFNIG_FILE);
-        if (srs_string_ends_with(SRS_CONF_DEFAULT_COFNIG_FILE, "docker.conf")) {
-            try_config_files.push_back(srs_string_replace(SRS_CONF_DEFAULT_COFNIG_FILE, "docker.conf", "srs.conf"));
+        if (srs_string_ends_with(config_file, "docker.conf")) {
+            try_config_files.push_back(srs_string_replace(config_file, "docker.conf", "srs.conf"));
         }
+        try_config_files.push_back(SRS_CONF_DEFAULT_COFNIG_FILE);
         try_config_files.push_back("/etc/srs/srs.conf");
 
+        // Match the first exists file.
         string exists_config_file;
         for (int i = 0; i < (int) try_config_files.size(); i++) {
             string try_config_file = try_config_files.at(i);
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index 48da553506..288a921350 100644
--- a/trunk/src/core/srs_core_version4.hpp
+++ b/trunk/src/core/srs_core_version4.hpp
@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    207
+#define VERSION_REVISION    208
 
 #endif