diff --git a/src/hanoidb_reader.erl b/src/hanoidb_reader.erl
index 60c7b63..1a58d7c 100644
--- a/src/hanoidb_reader.erl
+++ b/src/hanoidb_reader.erl
@@ -252,7 +252,6 @@ lookup_node(File,FromKey,#node{members=Members,level=N},_) ->
     end.
 
 
-
 first_node(#index{file=File}) ->
     case read_node(File, ?FIRST_BLOCK_POS) of
         {ok, #node{level=0, members=Members}} ->
@@ -370,21 +369,25 @@ find_start(K, KVs) ->
 
 
 
-read_node(File,{Pos,Size}) ->
-%   error_logger:info_msg("read_node ~p ~p ~p~n", [File, Pos, Size]),
+read_node(File, {Pos, Size}) ->
+%    error_logger:info_msg("read_node ~p ~p ~p~n", [File, Pos, Size]),
     {ok, <<_:32, Level:16/unsigned, Data/binary>>} = file:pread(File, Pos, Size),
     hanoidb_util:decode_index_node(Level, Data);
 
-read_node(File,Pos) ->
+read_node(File, Pos) ->
+%    error_logger:info_msg("read_node ~p ~p~n", [File, Pos]),
     {ok, Pos} = file:position(File, Pos),
     Result = read_node(File),
-%   error_logger:info_msg("decoded ~p ~p~n", [Pos, Result]),
+%    error_logger:info_msg("decoded ~p ~p~n", [Pos, Result]),
     Result.
 
 read_node(File) ->
+%    error_logger:info_msg("read_node ~p~n", [File]),
     {ok, <<Len:32, Level:16/unsigned>>} = file:read(File, 6),
+%    error_logger:info_msg("decoded ~p ~p~n", [Len, Level]),
     case Len of
-        0 -> eof;
+        0 ->
+            eof;
         _ ->
             {ok, Data} = file:read(File, Len-2),
             hanoidb_util:decode_index_node(Level, Data)
diff --git a/src/hanoidb_writer.erl b/src/hanoidb_writer.erl
index 6345d99..2fc5088 100644
--- a/src/hanoidb_writer.erl
+++ b/src/hanoidb_writer.erl
@@ -93,7 +93,7 @@ init([Name, Options]) ->
 
     case do_open(Name, Options, [exclusive]) of
         {ok, IdxFile} ->
-            file:write(IdxFile, ?FILE_FORMAT),
+            ok = file:write(IdxFile, ?FILE_FORMAT),
             Bloom = bloom:new(erlang:min(Size, 16#ffffffff), 0.001),
             BlockSize = hanoidb:get_opt(block_size, Options, ?NODE_SIZE),
             {ok, #state{ name=Name,
@@ -268,10 +268,9 @@ add_record(Level, Key, Value, #state{ nodes=[ #node{level=Level, members=List, s
             {ok, State2}
     end.
 
-close_node(#state{nodes=[#node{ level=Level, members=NodeMembers }|RestNodes], compress=Compress} = State) ->
+close_node(#state{nodes=[#node{ level=Level, members=NodeMembers }|RestNodes], compress=Compress, index_file_pos=NodePos} = State) ->
     OrderedMembers = lists:reverse(NodeMembers),
     {ok, BlockData} = hanoidb_util:encode_index_node(OrderedMembers, Compress),
-    NodePos = State#state.index_file_pos,
 
     BlockSize = erlang:iolist_size(BlockData),
     Data = [ <<(BlockSize+2):32/unsigned, Level:16/unsigned>> | BlockData ],
@@ -280,7 +279,7 @@ close_node(#state{nodes=[#node{ level=Level, members=NodeMembers }|RestNodes], c
     ok = file:write(State#state.index_file, Data),
 
     {FirstKey, _} = hd(OrderedMembers),
-    add_record(Level+1, FirstKey, {NodePos, DataSize},
+    add_record(Level + 1, FirstKey, {NodePos, DataSize},
                State#state{ nodes          = RestNodes,
                             index_file_pos = NodePos + DataSize,
                             last_node_pos  = NodePos,