diff --git a/accounts-db/src/accounts_db.rs b/accounts-db/src/accounts_db.rs
index c27f7b5d6..2857180bf 100644
--- a/accounts-db/src/accounts_db.rs
+++ b/accounts-db/src/accounts_db.rs
@@ -7262,7 +7262,7 @@ impl AccountsDb {
                     // so, build a file name:
                     let hash = hasher.finish();
                     let file_name = format!(
-                        "{}.{}.{}.{}.{}",
+                        "{}.{}.{}.{}.{:016x}",
                         range_this_chunk.start,
                         range_this_chunk.end,
                         bin_range.start,