datetime2 and ProviderManifestToken in Entity Framework

I have an MVC app using Entity Framework and a SQL Server 2008 database. I used the EF wizard to generate my data model.

I have a SQL Server table with a standard DateTime column. The EF model is using System.DateTime.

But when I try to insert a new record into this table from my application, without specifying a value for this DateTime column, I get the error:

The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value.

I Googled a bit and found that people are editing the edmx and changing the ProviderManifestToken. Ovbiously that will be overwritten, so is there a more permanent fix or way to fix this?