Code signing issues with QT Wallet on OS X?

Hey guys,

I get this popup every time I open the QT Wallet.
“Do you want the application ‘Reddcoin-Qt.app’ to accept incoming network connections?”

I have the app set to “allow” in the firewall preferences (as the popup suggests), but the popup persists every time the app is opened.

My research suggests that the app’s digital signature (code signing) could be broken. I have tried the following command in Terminal:
codesign -vvv /Applications/Reddcoin-QT.app/

But it returns:
/Applications/Reddcoin-QT.app/: code object is not signed at all

I don’t know how to force-sign the app, or even if I should. Totally newb in Terminal. Any tips?