Entity Framework sybase connection not possible with VS 2013

Hi we have Visual Studio 2013 and Sybase 15.7 SDK installed on our machines, as well the Sybase.AdoNet4.AseClient installed in C:\Sybase\DataAccess\ADONET\dll.

But when I try to go to add an ADO.Net Entity Data Model to my project and go to Connection properties, I can only see the SQL server data sources in the list.

What do I need to do to see the Sybase data source so that I can create a connection to my Sybase database for entity Framework?

Thanks