This needs to be changed to `strong`.

This is actually an interesting exercise.  I've always intentionally left the weak/strong/copy designations off of readonly properties, because they didn't make sense to me.  However, after reading [this SO thread](http://stackoverflow.com/questions/10694676/what-is-the-correct-way-to-declare-a-readonly-property-for-ios-using-arc), and particularly [this comment](http://stackoverflow.com/a/10695513/1236034), I see that there are good reasons for maintaining the designation.

In this case, the property in question should be strong.  I assume it's an oversight on the conversion tool's part.