diff --git a/crow/include/crow/http_connection.h b/crow/include/crow/http_connection.h
index fa0a23c..87fa874 100644
--- a/crow/include/crow/http_connection.h
+++ b/crow/include/crow/http_connection.h
@@ -361,6 +361,7 @@
         {401, "HTTP/1.1 401 Unauthorized\r\n"},
         {403, "HTTP/1.1 403 Forbidden\r\n"},
         {404, "HTTP/1.1 404 Not Found\r\n"},
+        {405, "HTTP/1.1 405 Method Not Allowed\r\n"},
 
         {500, "HTTP/1.1 500 Internal Server Error\r\n"},
         {501, "HTTP/1.1 501 Not Implemented\r\n"},