diff --git a/pgtype/pgtype.go b/pgtype/pgtype.go
index b72255ce..aedc6dd5 100644
--- a/pgtype/pgtype.go
+++ b/pgtype/pgtype.go
@@ -49,6 +49,7 @@ const (
 	BPCharArrayOID      = 1014
 	VarcharArrayOID     = 1015
 	Int8ArrayOID        = 1016
+	BoxArrayOID         = 1020
 	Float4ArrayOID      = 1021
 	Float8ArrayOID      = 1022
 	ACLItemOID          = 1033
@@ -303,6 +304,7 @@ func NewConnInfo() *ConnInfo {
 	ci.RegisterDataType(DataType{Name: "_int2", OID: Int2ArrayOID, Codec: &ArrayCodec{ElementCodec: Int2Codec{}, ElementOID: Int2OID}})
 	ci.RegisterDataType(DataType{Name: "_int4", OID: Int4ArrayOID, Codec: &ArrayCodec{ElementCodec: Int4Codec{}, ElementOID: Int4OID}})
 	ci.RegisterDataType(DataType{Name: "_int8", OID: Int8ArrayOID, Codec: &ArrayCodec{ElementCodec: Int8Codec{}, ElementOID: Int8OID}})
+	ci.RegisterDataType(DataType{Name: "_box", OID: BoxArrayOID, Codec: &ArrayCodec{ElementCodec: BoxCodec{}, ElementOID: BoxOID}})
 	ci.RegisterDataType(DataType{Value: &NumericArray{}, Name: "_numeric", OID: NumericArrayOID})
 	ci.RegisterDataType(DataType{Value: &TextArray{}, Name: "_text", OID: TextArrayOID})
 	ci.RegisterDataType(DataType{Value: &TimestampArray{}, Name: "_timestamp", OID: TimestampArrayOID})