diff --git a/trunk/src/kernel/srs_kernel_consts.hpp b/trunk/src/kernel/srs_kernel_consts.hpp
index 90092740d..4ffa78f49 100644
--- a/trunk/src/kernel/srs_kernel_consts.hpp
+++ b/trunk/src/kernel/srs_kernel_consts.hpp
@@ -65,8 +65,8 @@
 // to avoid death connection.
 
 // the common io timeout, for connect, recv or send.
-// TODO: FIXME: Maybe change to larger value, such as 90ms?
-#define SRS_CONSTS_RTMP_TIMEOUT (30 * SRS_UTIME_MILLISECONDS)
+// TODO: FIXME: Maybe change to smaller value, such as 3s?
+#define SRS_CONSTS_RTMP_TIMEOUT (30 * SRS_UTIME_SECONDS)
 
 // the timeout to wait for client control message,
 // if timeout, we generally ignore and send the data to client,