According to a popular view in contemporary epistemology, a belief is justified if, and only if, it amounts to knowledge. Upholders of this view also hold that knowledge is the fundamental norm governing belief and that conforming to this norm is both necessary and sufficient for justification. I argue against the claim that mere norm conformity is sufficient for justification. Rather, justification requires norm conformity for sufficient undefeated reasons. An important consequence is the rejection of the claim that conformity to the norm of belief is necessary and sufficient for epistemic justification. I illustrate some interesting consequences of this result.