I accidently broke a part of my PC that may affect the I/O. Is warranty possible?

[guwenxiao1157402dc]

I accidently broke a small part of my case on my computer while opening it up, and I'm wondering if I can apply it for warranty. The motherboard isn't damaged, it is just the part that holds down the I/O so that the I/O stays put. It's part of the plastic case, and I am pretty sure that replacing it in warranty is allowed. But yet the thing is, instead of waiting for an answer, my large brain decided to superglue the broken plastic. I don't know if this voids warranty. I still have my serial number, etc.