Absolutely tell your manager, boss, team lead whatever. You don't need to tell the whole company. However, you don't want to look like you're attempting to hide it. Honesty and clarity are always the best policies. Now, I dropped a table in production once. The phone started ringing while I was fixing it. I fixed it, answered the phone, and told the people on the other end, "Yeah, there was a glitch, but it should be online now, check again." I didn't tell them what I did. However, I went straight to the boss to let her know. Nothing ever happened from it, but my bottom was covered if something did.