How to keep javadoc visible after obfuscating the

Question

I obfuscating my code using progured 4.7, and im keeping class A that have javadoc describing what the class do.

-keep public class com.mysite.ClassA {public *;}
-keepattributes InnerClasses
-keepparameternames

In eclipse when i try to view the docs for this class, eclipse tells me that there's no attached java doc. is there a way to solve this?