diff --git a/trunk/src/protocol/srs_rtmp_stack.cpp b/trunk/src/protocol/srs_rtmp_stack.cpp
index ca5867f3d..d002356b3 100644
--- a/trunk/src/protocol/srs_rtmp_stack.cpp
+++ b/trunk/src/protocol/srs_rtmp_stack.cpp
@@ -211,7 +211,8 @@ int SrsPacket::encode_packet(SrsStream* stream)
 SrsProtocol::AckWindowSize::AckWindowSize()
 {
     window = 0;
-    sequence_number = nb_recv_bytes = 0;
+    sequence_number = 0;
+    nb_recv_bytes = 0;
 }
 
 SrsProtocol::SrsProtocol(ISrsProtocolReaderWriter* io)
diff --git a/trunk/src/protocol/srs_rtmp_utility.cpp b/trunk/src/protocol/srs_rtmp_utility.cpp
index b050488f0..e37612d49 100644
--- a/trunk/src/protocol/srs_rtmp_utility.cpp
+++ b/trunk/src/protocol/srs_rtmp_utility.cpp
@@ -71,8 +71,9 @@ void srs_discovery_tc_url(
     vhost = host;
     srs_vhost_resolve(vhost, app, param);
     srs_vhost_resolve(vhost, stream, param);
-    
-    if (param == "?vhost="SRS_CONSTS_RTMP_DEFAULT_VHOST) {
+
+    // There must be a space to make VS2015 happy.
+    if (param == "?vhost=" SRS_CONSTS_RTMP_DEFAULT_VHOST) {
         param = "";
     }
 }