Apr. 07, 2017

Oppenheimer Global Opportunities Fund

Oppenheimer Global Real Estate Fund

Oppenheimer Global Value Fund

Oppenheimer Gold & Special Minerals Fund

Oppenheimer Government Cash Reserves

Oppenheimer Government Money Market Fund

Oppenheimer Institutional Government Money Market Fund

Oppenheimer International Bond Fund

Oppenheimer International Diversified Fund

Oppenheimer International Growth and Income Fund

Oppenheimer International Growth Fund

Oppenheimer International Small-Mid Company Fund

Oppenheimer Limited-Term Bond Fund

Oppenheimer Limited-Term Government Fund

Oppenheimer Macquarie Global Infrastructure Fund

Oppenheimer Main Street Fund^®

Supplement dated April 10, 2017 to the Prospectus and Statement of Additional Information

This supplement amends the Prospectus and Statement of Additional Information (“SAI”) of each of the above-referenced Funds (each, a “Fund”), and is in addition to any other supplements.

Prospectus

1. All references in the Prospectus to the Sales Charge Waiver Appendix in the SAI are hereby revised to refer to the appendix to the prospectus titled “Special Sales Charge Arrangements and Waivers.”