diff --git a/psycopg/typecast_builtins.c b/psycopg/typecast_builtins.c
index 11e2605c..9d2633d2 100644
--- a/psycopg/typecast_builtins.c
+++ b/psycopg/typecast_builtins.c
@@ -39,8 +39,8 @@ static typecastObject_initlist typecast_builtins[] = {
   {"FLOAT", typecast_FLOAT_types, typecast_FLOAT_cast, NULL},
   {"DECIMAL", typecast_DECIMAL_types, typecast_DECIMAL_cast, NULL},
   {"UNICODE", typecast_STRING_types, typecast_UNICODE_cast, NULL},
-  {"STRING", typecast_STRING_types, typecast_STRING_cast, NULL},
   {"BYTES", typecast_STRING_types, typecast_BYTES_cast, NULL},
+  {"STRING", typecast_STRING_types, typecast_STRING_cast, NULL},
   {"BOOLEAN", typecast_BOOLEAN_types, typecast_BOOLEAN_cast, NULL},
   {"DATETIME", typecast_DATETIME_types, typecast_DATETIME_cast, NULL},
   {"DATETIMETZ", typecast_DATETIMETZ_types, typecast_DATETIMETZ_cast, NULL},