DOB error on AP receipt

Dear Sir,
I recently file for an AP renewal. I received the receipt that from USCIS. When I examined it, I found that the DOB on the AP receipt was printed wrong. I filled it correctly in my application based on copies I saved. However the EAD receipt, filed at the same time, has the correct DOB.
I was told in past that in some cases an error or 1-2 letters usually is acceptable.
Will a single digit deviation be acceptable on the EAD/AP card? What action should I take about this?