diff --git a/packages/core/src/session/revert.ts b/packages/core/src/session/revert.ts
index aaf8405ef57..f1e1a9ec099 100644
--- a/packages/core/src/session/revert.ts
+++ b/packages/core/src/session/revert.ts
@@ -13,8 +13,6 @@ import { SessionMessage } from "./message.js"
 import { SessionSchema } from "./schema.js"
 import { SessionMessageTable } from "./sql.js"
 
-export { MessageNotFoundError }
-
 interface BoundaryInput {
   readonly sessionID: SessionSchema.ID
   readonly messageID: SessionMessage.ID