diff --git a/ixwebsocket/IXSocketFactory.cpp b/ixwebsocket/IXSocketFactory.cpp
index cc148aaf..7c680512 100644
--- a/ixwebsocket/IXSocketFactory.cpp
+++ b/ixwebsocket/IXSocketFactory.cpp
@@ -31,6 +31,7 @@ namespace ix
                                          std::string& errorMsg,
                                          const SocketTLSOptions& tlsOptions)
     {
+        (void) tlsOptions;
         errorMsg.clear();
         std::shared_ptr<Socket> socket;
 
diff --git a/ixwebsocket/IXWebSocketTransport.cpp b/ixwebsocket/IXWebSocketTransport.cpp
index 691671f4..48bcfc6b 100644
--- a/ixwebsocket/IXWebSocketTransport.cpp
+++ b/ixwebsocket/IXWebSocketTransport.cpp
@@ -543,7 +543,7 @@ namespace ix
             }
 
             // Prevent integer overflow in the next conditional
-            const uint64_t maxFrameSize(1 << 63);
+            const uint64_t maxFrameSize(1ULL << 63);
             if (ws.N > maxFrameSize)
             {
                 return;