compiler/..../plugin.thrift structs mis-ordered blows up ocaml generator

in plugin.thrift, the structs are ordered
....
t_struct
t_field
....

but t_struct refers to t_field. So when I gen ocaml code:

thrift//compiler/cpp/thrift -r --gen ocaml thrift/compiler/cpp/src/thrift/plugin/plugin.thrift

and compile:

ocamlfind ocamlc -thread -package thrift -c gen-ocaml/plugin_types.mli
File "gen-ocaml/plugin_types.mli", line 284, characters 23-30:
Error: Unbound type constructor t_field

Fixing is easy (since the types aren't recursive) – just swap the order of the structs.