diff --git a/pgxn/neon/neon_lwlsncache.c b/pgxn/neon/neon_lwlsncache.c
index 59222eb855..6959da55cb 100644
--- a/pgxn/neon/neon_lwlsncache.c
+++ b/pgxn/neon/neon_lwlsncache.c
@@ -396,7 +396,7 @@ SetLastWrittenLSNForBlockRangeInternal(XLogRecPtr lsn,
 XLogRecPtr
 neon_set_lwlsn_block_range(XLogRecPtr lsn, NRelFileInfo rlocator, ForkNumber forknum, BlockNumber from, BlockNumber n_blocks)
 {
-	if (lsn == InvalidXLogRecPtr || n_blocks == 0 || LwLsnCache->lastWrittenLsnCacheSize == 0)
+	if (lsn < FirstNormalUnloggedLSN || n_blocks == 0 || LwLsnCache->lastWrittenLsnCacheSize == 0)
 		return lsn;
 
 	LWLockAcquire(LastWrittenLsnLock, LW_EXCLUSIVE);
@@ -505,4 +505,5 @@ neon_set_lwlsn_db(XLogRecPtr lsn)
 {
 	NRelFileInfo dummyNode = {InvalidOid, InvalidOid, InvalidOid};
 	return neon_set_lwlsn_block(lsn, dummyNode, MAIN_FORKNUM, 0);
-}
\ No newline at end of file
+}
+