Silo mentality is a phenomenon describing the aversion of sharing e.g. talent, data, and know-how beyond one’s immediate functional and hierarchical environment. Thereby, these silos are mental constructions, which are reflected in procedures and therefore information systems. In an economic environment that is information-driven, getting business units to share information across these organizational silos is highly relevant. This paper uses an enterprise architecture management (EAM) view on silos, where some actors (e.g. architects) guide other actors (e.g. project managers) towards contributing to enterprise-wide goals. To reach desired outcomes in EAM, compliance with enterprise architecture guidelines should be reached. For this setting, the present study investigates drivers for information sharing policy compliance. It combines General Deterrence Theory with Compliance Theory and employs an online experiment. The results reveal that sanctions, rewards, and their interaction significantly affect compliance, whereas the certainty of these sanctions or rewards to materialize did not.