'Syntax error or access violation' on installation

I'm unable to install this module on a particular installation of Drupal.

It throws the following error:

exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error or access violation: 1171 All parts of a PRIMARY KEY must be NOT NULL; if you need NULL in a key, use [error]
UNIQUE instead' in /Users/admin/Sites/iabuk/includes/database/database.inc:2171

Adding a NOT NULL value to the object in the installation file fixed this error. This issue occurred on MySQL 5.7.10. Patch attached.