Spilled a bit of clear diet soda on keyboard, should I be worried!?

So i opened a bottle of clear diet soda which decided to squirt freaking everywhere and some hit my keyboard, i quickly unplugged it and cleaned what i could, and let it rest over night on the side. Today it works very fine, but should I be worried about the drink leaving stains inside the keyboard, and could that potentially damage it in the long term, or reduce lifespan? :(