diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 9a60cb8c5..fb6699fe5 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -48,7 +48,7 @@
 
 // The current stable release.
 #define VERSION_STABLE 2
-#define VERSION_STABLE_BRANCH SRS_XSTR(VERSION_STABLE)".0release"
+#define VERSION_STABLE_BRANCH SRS_XSTR(VERSION_STABLE) ".0release"
 
 // For 32bit os, 2G big file limit for unistd io,
 // ie. read/write/lseek to use 64bits size for huge file.
diff --git a/trunk/src/kernel/srs_kernel_utility.cpp b/trunk/src/kernel/srs_kernel_utility.cpp
index 1d91b72bd..fb9dd07ff 100644
--- a/trunk/src/kernel/srs_kernel_utility.cpp
+++ b/trunk/src/kernel/srs_kernel_utility.cpp
@@ -125,7 +125,7 @@ srs_utime_t srs_get_system_startup_time()
 
 // For utest to mock it.
 #ifndef SRS_AUTO_OSX
-_srs_gettimeofday_t _srs_gettimeofday = ::gettimeofday;
+_srs_gettimeofday_t _srs_gettimeofday = (_srs_gettimeofday_t)::gettimeofday;
 #endif
 
 srs_utime_t srs_update_system_time()
diff --git a/trunk/src/protocol/srs_protocol_utility.cpp b/trunk/src/protocol/srs_protocol_utility.cpp
index 2582a0c1a..57e65ecf0 100644
--- a/trunk/src/protocol/srs_protocol_utility.cpp
+++ b/trunk/src/protocol/srs_protocol_utility.cpp
@@ -122,7 +122,7 @@ void srs_discovery_tc_url(string tcUrl, string& schema, string& host, string& vh
     srs_vhost_resolve(vhost, stream, param);
     
     // Ignore when the param only contains the default vhost.
-    if (param == "?vhost="SRS_CONSTS_RTMP_DEFAULT_VHOST) {
+    if (param == "?vhost=" SRS_CONSTS_RTMP_DEFAULT_VHOST) {
         param = "";
     }
 }