Possible error in the Chicago Style Author-Date?

Hi, I should need some help with a problem I am experiencing with the Chicago Style 18th ed. Author-Date.
According to the stylesheet, when quoting from multivolume works the citation should be (Author Year, volume number:page number), ex (Hazlitt 1967, 3:345).

Using Zotero I can only produce citations where "vol." is always present, i.e (Hazlitt 1967, vol. 3:345).

Is there a way to avoid this?
Thanks.
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