diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 98e43066b..7b16d20e0 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -90,7 +90,7 @@ stats {
     network    0;
     # the device name to stat the disk iops.
     # ignore the device of /proc/diskstats if not configed.
-    disk_device_name sda sdb xvda xvdb;
+    disk sda sdb xvda xvdb;
 }
 
 #############################################################################################
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 629761d95..41ce7dfe4 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -1249,7 +1249,7 @@ int SrsConfig::check_config()
         SrsConfDirective* conf = get_stats();
         for (int i = 0; conf && i < (int)conf->directives.size(); i++) {
             string n = conf->at(i)->name;
-            if (n != "network" && n != "disk_device_name") {
+            if (n != "network" && n != "disk") {
                 ret = ERROR_SYSTEM_CONFIG_INVALID;
                 srs_error("unsupported stats directive %s, ret=%d", n.c_str(), ret);
                 return ret;
@@ -3202,7 +3202,7 @@ SrsConfDirective* SrsConfig::get_stats_disk_device()
         return NULL;
     }
     
-    conf = conf->get("disk_device_name");
+    conf = conf->get("disk");
     if (!conf || conf->args.size() == 0) {
         return NULL;
     }
diff --git a/trunk/src/utest/srs_utest_config.cpp b/trunk/src/utest/srs_utest_config.cpp
index e6fe1fee3..a19011302 100644
--- a/trunk/src/utest/srs_utest_config.cpp
+++ b/trunk/src/utest/srs_utest_config.cpp
@@ -158,7 +158,7 @@ std::string __full_conf = ""
     "    network    0;                                                                                                         \n"
     "    # the device name to stat the disk iops.                                                                                           \n"
     "    # ignore the device of /proc/diskstats if not configed.                                                                            \n"
-    "    disk_device_name sda sdb xvda xvdb;                                                                                                \n"
+    "    disk sda sdb xvda xvdb;                                                                                                \n"
     "}                                                                                                                                      \n"
     "                                                                                                                                       \n"
     "#############################################################################################                                          \n"
@@ -4642,12 +4642,12 @@ VOID TEST(ConfigMainTest, CheckConf_stats)
     
     if (true) {
         MockSrsConfig conf;
-        EXPECT_TRUE(ERROR_SUCCESS == conf.parse(_MIN_OK_CONF"stats{disk_device_name sda;}"));
+        EXPECT_TRUE(ERROR_SUCCESS == conf.parse(_MIN_OK_CONF"stats{disk sda;}"));
     }
     
     if (true) {
         MockSrsConfig conf;
-        EXPECT_TRUE(ERROR_SUCCESS != conf.parse(_MIN_OK_CONF"stats{disk_device_names sda;}"));
+        EXPECT_TRUE(ERROR_SUCCESS != conf.parse(_MIN_OK_CONF"stats{disks sda;}"));
     }
 }