[plt-scheme] minor error in Language Manual

In section "12.3.4  Module Environments"
of the "PLT MzScheme: Language Manual" there
appears to be an error in the following example code:

(define-syntax onem (lambda (stx) (datum->syntax-object (mx) stx stx)))
                                                        ^^^^^^^^
Where I think it should be

(define-syntax onem (lambda (stx) (datum->syntax-object stx (mx) stx)))
                                                        ^^^^^^^^

Bruce Hauman