Rubber plug holding structure for terminal

A rubber plug holding structure for a terminal comprising:

• an electric wire that includes a core wire and an insulating coating that coats the core wire;
• a rubber plug through which the electric wire is inserted and which seals a gap with the electric wire;
• and
• a terminal that has a first press-fastening piece which press-fastens an outer periphery of the rubber plug, wherein
• the terminal includes a second press-fastening piece, the second press-fastening piece being formed of a portion of the terminal which remains after cutting a connecting piece serving as a connecting portion of a carrier when the terminal is formed from a chain terminal, the second press-fastening piece press-fastening a part of the outer periphery of the rubber plug, and the second press-fastening piece is formed in a convex shape when viewed in cross-section.