diff --git a/pgtype/pgtype.go b/pgtype/pgtype.go
index 9948c87a..af91dcaf 100644
--- a/pgtype/pgtype.go
+++ b/pgtype/pgtype.go
@@ -55,6 +55,7 @@ const (
 	VarcharArrayOID     = 1015
 	Int8ArrayOID        = 1016
 	PointArrayOID       = 1017
+	LsegArrayOID        = 1018
 	BoxArrayOID         = 1020
 	Float4ArrayOID      = 1021
 	Float8ArrayOID      = 1022
@@ -275,6 +276,7 @@ func NewConnInfo() *ConnInfo {
 	ci.RegisterDataType(DataType{Name: "_interval", OID: IntervalArrayOID, Codec: &ArrayCodec{ElementCodec: IntervalCodec{}, ElementOID: IntervalOID}})
 	ci.RegisterDataType(DataType{Name: "_box", OID: BoxArrayOID, Codec: &ArrayCodec{ElementCodec: BoxCodec{}, ElementOID: BoxOID}})
 	ci.RegisterDataType(DataType{Name: "_line", OID: LineArrayOID, Codec: &ArrayCodec{ElementCodec: LineCodec{}, ElementOID: LineOID}})
+	ci.RegisterDataType(DataType{Name: "_lseg", OID: LsegArrayOID, Codec: &ArrayCodec{ElementCodec: LsegCodec{}, ElementOID: LsegOID}})
 	ci.RegisterDataType(DataType{Name: "_circle", OID: CircleArrayOID, Codec: &ArrayCodec{ElementCodec: CircleCodec{}, ElementOID: CircleOID}})
 	ci.RegisterDataType(DataType{Name: "_point", OID: PointArrayOID, Codec: &ArrayCodec{ElementCodec: PointCodec{}, ElementOID: PointOID}})
 	ci.RegisterDataType(DataType{Name: "_name", OID: NameArrayOID, Codec: &ArrayCodec{ElementCodec: TextCodec{}, ElementOID: NameOID}})