  A regular wormhole solution in gravity coupled with a phantom scalar and
electromagnetic fields is found. The solution exists for a special choice of
the parameter $f$ of the potential term. The mass $m$ of a wormhole filled with
a phantom and electrostatic fields is calculated. It is shown that close to
some point $f_0$ a small value of the mass $m$ is the remainder of two big
masses of the phantom and electrostatic fields. The connection with the
renormalization procedure in quantum filed theory is considered. The connection
between Wheeler's idea ``mass without mass'' and renormalization procedure in
quantum field theory is discussed.
