diff --git a/blockstore_journal.cpp b/blockstore_journal.cpp
index 98f6378f..133d4227 100644
--- a/blockstore_journal.cpp
+++ b/blockstore_journal.cpp
@@ -20,7 +20,7 @@ int blockstore_journal_check_t::check_available(blockstore_op_t *op, int entries
     int required = entries_required;
     while (1)
     {
-        int fits = bs->journal.no_same_sector_overwrites && bs->journal.sector_info[next_sector].written
+        int fits = bs->journal.no_same_sector_overwrites && next_pos == bs->journal.next_free && bs->journal.sector_info[next_sector].written
             ? 0
             : (bs->journal.block_size - next_in_pos) / size;
         if (fits > 0)