Not everybody is in agreement about the pronunciation of "Victual/victuals" an archaic word for food and supplies. It may be where we get the phrase "vital supplies from" or any other use of the word vital=necessary.
The pronunciation without the "c' apparently comes from the earlier version of English "vitaile" and "victual" is from the latin but we still say the English pronunciation even though we write the latin version.
Middle English: from Old French vitaille, from late Latin victualia, neuter plural of Latin victualis, from victus ‘food’; related to vivere ‘to live’. The pronunciation still represents the early spelling vittel ; later spelling has been influenced by the Latin form.
This means the pronunciation of that word is correct in the poem. Unless you are specifically wishing to say it in latin. I doubt many people would refer to needing victual supplies today or to say we need victuals (food).