diff --git a/storage/kvstore_compaction.go b/storage/kvstore_compaction.go
index d63e25f42..cec9cc435 100644
--- a/storage/kvstore_compaction.go
+++ b/storage/kvstore_compaction.go
@@ -31,7 +31,7 @@ func (s *store) scheduleCompaction(compactMainRev int64, keep map[revision]struc
 			}
 		}
 
-		if len(keys) == 0 {
+		if len(keys) < int(batchsize) {
 			rbytes := make([]byte, 8+1+8)
 			revToBytes(revision{main: compactMainRev}, rbytes)
 			tx.UnsafePut(metaBucketName, finishedCompactKeyName, rbytes)