Additional backslash being added in password

Hi, I am using FreeRADIUS version - 3.0.17 While investigating some login authentication failures, I found that if the user has a backslash \ in their password, then another backslash is being added and the login fails. For example: if a user has a password R@ndom\String, then in FreeRADIUS it is being taken as R@ndom\\String. ( one more backslash is added ). Could you please let me know how to make FreeRADIUS accept the single backslash character as it is and not to add extra backslash? Thank you.