MFS GOVERNMENT SECURITIES FUND, 497J, 1998-07-01

MFS GOVERNMENT SECURITIES FUND
497J, 1998-07-01

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                         MFS GOVERNMENT SECURITIES FUND
               500 Boylston Street Boston Massachusetts 02116-3741
                                  617 954 5000




                                        July 1, 1998

VIA EDGAR

Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, NW
Washington, DC  20549

         Re:  MFS Government Securities Fund (the "Fund") (File Nos. 2-74959 and
              811-3327)

Ladies and Gentlemen:

         Pursuant to Rule 497(j) under the  Securities  Act of 1933, as amended,
please accept this letter as certification  that the Prospectus and Statement of
Additional  Information  for the Fund do not  differ  from  those  contained  in
Post-Effective  Amendment No. 22 (the  "Amendment")  to the Fund's  Registration
Statement on Form N-1A. The Amendment was filed electronically on June 25, 1998.

         Please call the undersigned or Sharon Julius-Doucette at (617) 954-5406
or (800) 343-2829 with any questions you may have.

                                        Very truly yours,


                                        JAMES R. BORDEWICK, JR.
                                        James R. Bordewick, Jr.
                                        Assistant Secretary

JRB/bjn