Sorry we missed the window to answer your question
For future reference, my answer would have been that if you think she needs the sleep, let her have it, but not beyond her normal feed time. The reason being that if she didn't have a good morning nap, then she needs to catch up on the pm nap (too little daytime sleep can adversely affect nighttime sleep), but you should wake her up for her normal eating time, b/c if you don't you will mess up her eating routine, she may not get in enough calories in the day, and wake up hungry at night - not a vicious circle you want to get started
. Perhaps you could also think about a little catnap to get her through until bedtime to stop her getting overtired?
HTH for next time