I've had that happen. Pretty easy to fix.
What I did was,
- Removed the clip,
- Got something that was just a little skinnier than the gap I wanted to achieve (I don't recall what I used now - maybe a nickle and a penny, or two pennies, right sized stack of business cards, chopstick, ??? I don't remember what it was)
- Put that "something" in the "hook" area of the clip and then with some pliers (I've used both my multi tool and channel locks) squeeze the clip down onto your "spacer material".
- Go easy, make sure both prongs are even, and check often. It goes pretty quick, and works good.
When I've done mine, I give them a touch more tension than they had normally, as that is my preference.
u.w.