  The class of root systems, called elliptic root systems, were introduced in
1985 by K. Saito, for his studies on a normal surface singularity which
contains a regular elliptic curve in its minimal resolution. He also classified
such root systems when they admit a reduced affine quotient, as root system. In
this note, we provide the classification of elliptic root systems that admit a
non-reduced affine quotient, thus complete the classification of such root
systems.
