ASP.NET Identity V2 - Discriminator Column

Hello, I'm starting with ASP.NET Identity V2 and am trying to create 2 seperate projects (One is a ASP.NET MVC project and a second is a Web API project) and would like a user to be able to use either the MVC App or a mobile app that uses the Web API project but be able to login using the same credentials.  To start I pointed both projects to the same database and the MVC app registers fine, however the Web API app fails when the entity framework attempts to save the user to the AspNetUsers table because it doesn't have the Discriminator column.
Does anyone know if there is a way to eliminate that from the MVC project or add it to the Web API project?
Thanks