diff --git a/trunk/src/app/srs_app_coworkers.cpp b/trunk/src/app/srs_app_coworkers.cpp
index 77787b46e..3ab06232e 100644
--- a/trunk/src/app/srs_app_coworkers.cpp
+++ b/trunk/src/app/srs_app_coworkers.cpp
@@ -41,11 +41,11 @@ SrsCoWorkers::SrsCoWorkers()
 SrsCoWorkers::~SrsCoWorkers()
 {
     map<string, SrsRequest*>::iterator it;
-    for (it = vhosts.begin(); it != vhosts.end(); ++it) {
+    for (it = streams.begin(); it != streams.end(); ++it) {
         SrsRequest* r = it->second;
         srs_freep(r);
     }
-    vhosts.clear();
+    streams.clear();
 }
 
 SrsCoWorkers* SrsCoWorkers::instance()
@@ -90,8 +90,8 @@ SrsRequest* SrsCoWorkers::find_stream_info(string vhost, string app, string stre
     
     // Get stream information from local cache.
     string url = srs_generate_stream_url(conf->arg0(), app, stream);
-    map<string, SrsRequest*>::iterator it = vhosts.find(url);
-    if (it == vhosts.end()) {
+    map<string, SrsRequest*>::iterator it = streams.find(url);
+    if (it == streams.end()) {
         return NULL;
     }
     
@@ -105,13 +105,13 @@ srs_error_t SrsCoWorkers::on_publish(SrsSource* s, SrsRequest* r)
     string url = r->get_stream_url();
     
     // Delete the previous stream informations.
-    map<string, SrsRequest*>::iterator it = vhosts.find(url);
-    if (it != vhosts.end()) {
+    map<string, SrsRequest*>::iterator it = streams.find(url);
+    if (it != streams.end()) {
         srs_freep(it->second);
     }
     
     // Always use the latest one.
-    vhosts[url] = r->copy();
+    streams[url] = r->copy();
     
     return err;
 }
@@ -120,10 +120,10 @@ void SrsCoWorkers::on_unpublish(SrsSource* s, SrsRequest* r)
 {
     string url = r->get_stream_url();
     
-    map<string, SrsRequest*>::iterator it = vhosts.find(url);
-    if (it != vhosts.end()) {
+    map<string, SrsRequest*>::iterator it = streams.find(url);
+    if (it != streams.end()) {
         srs_freep(it->second);
-        vhosts.erase(it);
+        streams.erase(it);
     }
 }
 
diff --git a/trunk/src/app/srs_app_coworkers.hpp b/trunk/src/app/srs_app_coworkers.hpp
index 55bb9e334..80c09dfa8 100644
--- a/trunk/src/app/srs_app_coworkers.hpp
+++ b/trunk/src/app/srs_app_coworkers.hpp
@@ -38,7 +38,7 @@ class SrsCoWorkers
 private:
     static SrsCoWorkers* _instance;
 private:
-    std::map<std::string, SrsRequest*> vhosts;
+    std::map<std::string, SrsRequest*> streams;
 private:
     SrsCoWorkers();
     virtual ~SrsCoWorkers();