-       strncpy(AppState->HTTPServer.FileName, &RequestedFileName[1], (sizeof(AppState->HTTPServer.FileName) - 1));
+       strncpy(AppState->HTTPServer.FileName, &RequestedFileName[1], sizeof(AppState->HTTPServer.FileName));
 
        /* Ensure filename is null-terminated */
        AppState->HTTPServer.FileName[sizeof(AppState->HTTPServer.FileName) - 1] = 0x00;
 
        /* Ensure filename is null-terminated */
        AppState->HTTPServer.FileName[sizeof(AppState->HTTPServer.FileName) - 1] = 0x00;
        uint8_t FileNameLen = strlen(AppState->HTTPServer.FileName);
 
        /* If the URI is a directory, append the default filename */
        uint8_t FileNameLen = strlen(AppState->HTTPServer.FileName);
 
        /* If the URI is a directory, append the default filename */
        {
                strncpy_P(&AppState->HTTPServer.FileName[FileNameLen], DefaultDirFileName,
                          (sizeof(AppState->HTTPServer.FileName) - FileNameLen));
        {
                strncpy_P(&AppState->HTTPServer.FileName[FileNameLen], DefaultDirFileName,
                          (sizeof(AppState->HTTPServer.FileName) - FileNameLen));
                /* Ensure altered filename is still null-terminated */
                AppState->HTTPServer.FileName[sizeof(AppState->HTTPServer.FileName) - 1] = 0x00;
        }
                /* Ensure altered filename is still null-terminated */
                AppState->HTTPServer.FileName[sizeof(AppState->HTTPServer.FileName) - 1] = 0x00;
        }