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Prospectus:

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Supplement Text Block

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Prospectus Supplement

John Hancock Capital Series

Supplement dated December 31, 2017 to the current prospectus, as supplemented (the "Prospectus")

John Hancock U.S. Global Leaders Growth Fund (the "fund")

Effective December 31, 2017, the fund will automatically lose its status as a non-diversified fund. Accordingly, the fund operates, and will continue to operate, as a diversified fund, and all references to the fund being non-diversified are hereby removed from the Prospectus.