Design flaw in guttering?

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Here is a photo of my gutter off my first floor roof, that is directly above a large skylight in my ground floor roof:

 

 

when it rains, there is a fairly constant drip from the gutter onto the rooflight below, making a fairly noticeable sound in the living room under the skylight. One possibility is that it’s leaking, but I don’t think that’s the case. It appears that water hitting the sides of the gutter (which is of the rectangular, not curved, type) or the top edge, drips down the external side of the gutter and then onto the rooflight beneath. Is there anything I can do about this? Would adding a diagonal profile to the top of the gutter, for example, help to funnel water that would otherwise hit the side into the gutter?