diff --git a/src/leveled_sst.erl b/src/leveled_sst.erl
index 434b19c..17c094e 100644
--- a/src/leveled_sst.erl
+++ b/src/leveled_sst.erl
@@ -503,7 +503,6 @@ write_file(Filename, SummaryBin, SlotsBin) ->
     SummaryLength = byte_size(SummaryBin),
     SlotsLength = byte_size(SlotsBin),
     {PendingName, FinalName} = generate_filenames(Filename),
-    DirName = filename:dirname(PendingName),
     ok = file:write_file(PendingName,
                             <<SlotsLength:32/integer,
                                 SummaryLength:32/integer,