A connector, comprising: a first housing configured to store therein a pair of terminal fittings arranged in a lateral manner; a second housing capable of being mated with and separated from the first housing; a short terminal provided in the first housing, the short terminal being configured to bring, when the first housing is being separated from the second housing, a pair of elastic contact pieces elastically contact with the pair of terminal fittings to thereby cause the short circuiting of the pair of terminal fittings; a short-cancelling projection formed in the second housing, the short-cancelling projection protruding in the same direction as the direction along which the second housing is mated with the first housing; a support portion constituting the short-cancelling projection, the support portion being configured, when the first housing is being mated with the second housing, to partition the pair of elastic contact pieces; a pair of plate-shaped insulating portions protruding from the support portion in opposite directions from each other, the plate-shaped insulating portions constituting the short-cancelling projection and being configured, in a state where the first housing is mated with the second housing, to be placed between the pair of elastic contact pieces and the pair of terminal fittings to cancel the short circuiting of the pair of terminal fittings; and a correction portion (41, 42, 43) formed on at least one of a protruding end of the support portion and a protruding end of the plate-shaped insulating portion, the correction portion (41, 42, 43) being configured to be abutted to the first housing to displace the short-cancelling projection in a direction along which the short-cancelling projection approaches the short terminal, wherein the protruding end of the support portion has a first correction portion inclined to approach the short terminal while extending toward a tip end in a protruding direction of the short-cancelling projection, and the protruding end of the plate-shaped insulating portion has a third correction portion inclined to approach the short terminal while extending toward the tip end in the protruding direction of the short-cancelling projection, characterized in that the pair of plate-shaped insulating portions have a protruding end having a second correction portion inclined backward in the protruding direction of the short-cancelling projection while extending away from the support portion. a first housing configured to store therein a pair of terminal fittings arranged in a lateral manner; a second housing capable of being mated with and separated from the first housing; a short terminal provided in the first housing, the short terminal being configured to bring, when the first housing is being separated from the second housing, a pair of elastic contact pieces elastically contact with the pair of terminal fittings to thereby cause the short circuiting of the pair of terminal fittings; a short-cancelling projection formed in the second housing, the short-cancelling projection protruding in the same direction as the direction along which the second housing is mated with the first housing; a support portion constituting the short-cancelling projection, the support portion being configured, when the first housing is being mated with the second housing, to partition the pair of elastic contact pieces; a pair of plate-shaped insulating portions protruding from the support portion in opposite directions from each other, the plate-shaped insulating portions constituting the short-cancelling projection and being configured, in a state where the first housing is mated with the second housing, to be placed between the pair of elastic contact pieces and the pair of terminal fittings to cancel the short circuiting of the pair of terminal fittings; and a correction portion (41, 42, 43) formed on at least one of a protruding end of the support portion and a protruding end of the plate-shaped insulating portion, the correction portion (41, 42, 43) being configured to be abutted to the first housing to displace the short-cancelling projection in a direction along which the short-cancelling projection approaches the short terminal, wherein the protruding end of the support portion has a first correction portion inclined to approach the short terminal while extending toward a tip end in a protruding direction of the short-cancelling projection, and the protruding end of the plate-shaped insulating portion has a third correction portion inclined to approach the short terminal while extending toward the tip end in the protruding direction of the short-cancelling projection, characterized in that the pair of plate-shaped insulating portions have a protruding end having a second correction portion inclined backward in the protruding direction of the short-cancelling projection while extending away from the support portion.