Trying to debug an error with a Wait() in a function?

So i'm making an AI script, and there's a function with an error inside of it.

It apparently says that Workspace.Enemy.AI:59: Expected '(', '{' or when parsing function call, got ':'

It's in line

local function walkTo(destination)
	local path = getpath(destination)
	
	for index, waypoint in pairs(path:GetWaypoints()) do
		local target = findTarget()
		if target then
			print('Target found, going dark', target.Name)
			attack(target)
			break
		else
			print('Moving to the target')
			humanoid:MoveTo(waypoint.Position)
			humanoid:MoveToFinished:Wait()
	    end
	end
end

It's at line 14 at the Wait(), anybody have an idea on how to fix that?