diff --git a/src/tsung/ts_digest.erl b/src/tsung/ts_digest.erl
index e12d979b..38105c6f 100644
--- a/src/tsung/ts_digest.erl
+++ b/src/tsung/ts_digest.erl
@@ -72,13 +72,13 @@ shahex(Clear) ->
 %%%----------------------------------------------------------------------
 tohex(A)->
     Fun = fun(X)->
-                  ts_utils:to_lower(padhex(httpd_util:integer_to_hexlist(X)))
+                  ts_utils:to_lower(padhex(erlang:integer_to_list(X, 16)))
           end,
     lists:flatten( lists:map(Fun, A) ).
 
 %%%----------------------------------------------------------------------
 %%% Func: padhex/1
-%%% Purpose: needed because httpd_util:integer_to_hexlist returns hex
+%%% Purpose: needed because erlang:integer_to_list(X, 16) returns hex
 %%%    values <10 as only 1 character, ie. "0F" is simply returned as
 %%%    "F". For our digest, we need these leading zeros to be present.
 %%% ----------------------------------------------------------------------
diff --git a/src/tsung/ts_http.erl b/src/tsung/ts_http.erl
index 5bd7e2c1..0526c0e2 100644
--- a/src/tsung/ts_http.erl
+++ b/src/tsung/ts_http.erl
@@ -315,7 +315,7 @@ decode_chunk_size(<<Head:2/binary, Data/binary >>, Headers, Body, <<>>) when Hea
     ?Debug("decode chunk: crlf, no digit"),
     decode_chunk_size(Data, Headers, Body, <<>>);
 decode_chunk_size(<<Head:2/binary, Data/binary >>, Headers, Body,Digits) when Head ==  << "\r\n" >> ->
-    case httpd_util:hexlist_to_integer(binary_to_list(Digits)) of
+    case erlang:list_to_integer(binary_to_list(Digits), 16) of
         0 ->
             decode_chunk_size(Data, Headers, Body ,<<>>);
         Size ->
diff --git a/src/tsung/ts_http_common.erl b/src/tsung/ts_http_common.erl
index 346751e2..cb924126 100644
--- a/src/tsung/ts_http_common.erl
+++ b/src/tsung/ts_http_common.erl
@@ -405,7 +405,7 @@ parse_chunked(Body, State)->
 %%----------------------------------------------------------------------
 read_chunk(<<>>, State, Int, Acc) ->
     ?LOGF("No data in chunk [Int=~p, Acc=~p] ~n", [Int,Acc],?INFO),
-    AccInt = list_to_binary(httpd_util:integer_to_hexlist(Int)),
+    AccInt = list_to_binary(erlang:integer_to_list(Int, 16)),
     { State#state_rcv{acc = AccInt, ack_done = false }, [] }; % read more data
 %% this code has been inspired by inets/http_lib.erl
 %% Extensions not implemented