buckle on skate

Question
My four year old has expressed an interest in inline skating.  I purchased a pair of "NEW" skates off of the internet.  (Husband out of work, money tight, no rentals available for class)The skates were new and never worn but after some research I have found out the company is out of business.  The have two straps.  the lower is velco.  The upper has a notched strap that feeds through a buckle that you clamp down.  The one buckle is not staying down.  I have seen these buckles on many skates.  Is there an adjustment that can be done?  Or are there any other ideas for keeping this closed?

Answer
I apologize for the delayed response, I am travelling.

Anyway, I recommend that you use a velcro strap for this. You can wsrap it all the way around the boot and that should hold. They do sell special ones for skating, called Power Straps.

Good luck.