diff --git a/src/hanoidb_nursery.erl b/src/hanoidb_nursery.erl
index d670961..dfb7fcd 100644
--- a/src/hanoidb_nursery.erl
+++ b/src/hanoidb_nursery.erl
@@ -246,8 +246,8 @@ add(Key, Value, Expiry, Nursery, Top) ->
     case do_add(Nursery, Key, Value, Expiry, Top) of
         {ok, Nursery0} ->
             {ok, Nursery0};
-        {full, Nursery1} ->
-            flush(Nursery1, Top)
+        {full, Nursery0} ->
+            flush(Nursery0, Top)
     end.
 
 flush(Nursery=#nursery{ dir=Dir, max_level=MaxLevel, config=Config }, Top) ->
diff --git a/src/hanoidb_writer.erl b/src/hanoidb_writer.erl
index becccc1..12c9720 100644
--- a/src/hanoidb_writer.erl
+++ b/src/hanoidb_writer.erl
@@ -186,15 +186,12 @@ do_open(Name, Options, OpenOpts) ->
 
 
 %% @doc flush pending nodes and write trailer
-flush_nodes(State=#state{ nodes=[#node{level=N, members=[{_,{Pos,_Len}}]}], last_node_pos=Pos }) when N>0 ->
-    %% stack consists of one node with one {pos,len} member.  Just ignore this node.
-    flush_nodes(State#state{ nodes=[] });
 flush_nodes(#state{ nodes=[], last_node_pos=LastNodePos, last_node_size=_LastNodeSize, bloom=Bloom }=State) ->
     IdxFile = State#state.index_file,
 
     RootPos =
-        case LastNodePos of
-            undefined ->
+        case LastNodePos =:= undefined of
+            true ->
                 %% store contains no entries
                 ok = file:write(IdxFile, <<0:32,0:16>>),
                 ?FIRST_BLOCK_POS;