Pre move top nozzle/sprayer on windshield wiper arm on 2003 Century

[op157]

On each wiper, there are 2 nozzles that spray wiper fluid on my windshield. They look a bit like these: http://ecx.images-amazon.com/images/I/61jl4k2eDWL._SX466_.jpg

I had the top nozzle off to unclog it and I clamped it shut but now I cannot open it to put it back on the wiper. I've used a flathead screwdriver to try and open it, but I'm damaging the plastic more than anything trying to force it open.

Has anyone ever removed these? Is there some trick to opening up the clip?

 

[op157]

I've been trying repeatedly and I finally got it. It just took a lot more force than I expected. I did damage the plastic a little though but I think it's good enough to still attach nicely.