diff --git a/ledger/src/blockstore_processor.rs b/ledger/src/blockstore_processor.rs
index 507ae50fc58..365171d5bfe 100644
--- a/ledger/src/blockstore_processor.rs
+++ b/ledger/src/blockstore_processor.rs
@@ -2135,6 +2135,11 @@ fn process_bank_0(
         err @ BlockstoreProcessorError::InvalidTransaction(_) => panic!("{err}"),
         _ => BlockstoreProcessorError::FailedToReplayBank0,
     })?;
+    bank0.set_block_id(Some(
+        blockstore
+            .get_block_id(bank0.slot(), migration_status)?
+            .expect("block id for a full slot must exist"),
+    ));
     bank0.freeze();
     if blockstore.is_primary_access() {
         blockstore.insert_bank_hash(bank0.slot(), bank0.hash(), false);