diff --git a/include/crow/parser.h b/include/crow/parser.h
index 5a365bb3a..7099e8c7c 100644
--- a/include/crow/parser.h
+++ b/include/crow/parser.h
@@ -16,9 +16,8 @@ namespace crow
     template<typename Handler>
     struct HTTPParser : public http_parser
     {
-        static int on_message_begin(http_parser* self_)
+        static int on_message_begin(http_parser*)
         {
-            HTTPParser* self = static_cast<HTTPParser*>(self_);
             return 0;
         }
         static int on_method(http_parser* self_)
diff --git a/tests/unittest.cpp b/tests/unittest.cpp
index 4729bfed7..7df62ea0b 100644
--- a/tests/unittest.cpp
+++ b/tests/unittest.cpp
@@ -2472,7 +2472,7 @@ TEST_CASE("stream_response")
 
 TEST_CASE("websocket")
 {
-    static std::string http_message = "GET /ws HTTP/1.1\r\nConnection: keep-alive, Upgrade\r\nupgrade: websocket\r\nSec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\nSec-WebSocket-Version: 13\r\n\r\n";
+    static std::string http_message = "GET /ws HTTP/1.1\r\nConnection: keep-alive, Upgrade\r\nupgrade: websocket\r\nSec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\nSec-WebSocket-Version: 13\r\nHost: localhost\r\n\r\n";
 
     static bool connected{false};
 
@@ -2635,7 +2635,7 @@ TEST_CASE("websocket")
 
 TEST_CASE("websocket_max_payload")
 {
-    static std::string http_message = "GET /ws HTTP/1.1\r\nConnection: keep-alive, Upgrade\r\nupgrade: websocket\r\nSec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\nSec-WebSocket-Version: 13\r\n\r\n";
+    static std::string http_message = "GET /ws HTTP/1.1\r\nConnection: keep-alive, Upgrade\r\nupgrade: websocket\r\nSec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\nSec-WebSocket-Version: 13\r\nHost: localhost\r\n\r\n";
 
     static bool connected{false};