diff --git a/trunk/src/app/srs_app_source.cpp b/trunk/src/app/srs_app_source.cpp
index 45a852060..416d088e8 100644
--- a/trunk/src/app/srs_app_source.cpp
+++ b/trunk/src/app/srs_app_source.cpp
@@ -268,6 +268,7 @@ int SrsConsumer::enqueue(SrsSharedPtrMessage* msg, int tba, int tbv)
 {
     int ret = ERROR_SUCCESS;
     
+    /* TODO: to support atc */
     if ((ret = jitter->correct(msg, tba, tbv)) != ERROR_SUCCESS) {
         srs_freep(msg);
         return ret;
diff --git a/trunk/src/libs/srs_lib_simple_socket.cpp b/trunk/src/libs/srs_lib_simple_socket.cpp
index bb24dc993..3a4e9bd3d 100644
--- a/trunk/src/libs/srs_lib_simple_socket.cpp
+++ b/trunk/src/libs/srs_lib_simple_socket.cpp
@@ -33,6 +33,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <errno.h>
 #include <sys/uio.h>
 
+#include <srs_kernel_utility.hpp>
+
 #ifndef ST_UTIME_NO_TIMEOUT
     #define ST_UTIME_NO_TIMEOUT -1
 #endif