Full Idea
What foundationalism requires is self-justification, which is weaker than incorrigibility.
Clarification
'Incorrigibility' means cannot be corrected
Gist of Idea
Foundationalism requires self-justification, not incorrigibility
Source
J Pollock / J Cruz (Contemporary theories of Knowledge (2nd) [1999], §2.5.3)
Book Reference
Pollock,J.L./Cruz,J: 'Contemporary Theories of Knowledge (2nd)' [Rowman and Littlefield 1999], p.59
A Reaction
The writers oppose foundationalism, but this remark obviously helps the theory. Bonjour votes for a fallible rationalist foundationalism, and an fallible empiricist version seems plausible (because we must check for hallucinations etc.).