Cracked front mudgaurd :-(

[RichardDDuke]

Just noticed that both sides of my mudgaurd have cracks near the top mounting hole . However, the bottom mounts are both fine and dandy.
The cracks aren't large, but I would like them fixed.
I did go through the forum and there are few older posts about fixing cracks but I was wondering if there are newer products out there which are easy to use.
Any positive advice as ever would be greatfully received.

 

[900Rebuilder]

I'd use my hot stapler and then plastic weld but you will need to repaint with this option however.