diff --git a/src/musrFT.cpp b/src/musrFT.cpp
index e55855ff6..ae8f9e5ff 100644
--- a/src/musrFT.cpp
+++ b/src/musrFT.cpp
@@ -36,13 +36,12 @@
 #include <iostream>
 #include <fstream>
 #include <vector>
+#include <string>
 #include <memory>
 
 #include <TApplication.h>
 #include <TROOT.h>
 #include <TString.h>
-#include <TObjArray.h>
-#include <TObjString.h>
 #include <TSAXParser.h>
 
 #ifdef HAVE_GIT_REV_H
@@ -50,6 +49,7 @@
 #endif
 
 #include "PMusr.h"
+#include "PStringUtils.h"
 #include "PStartupHandler.h"
 #include "PMsrHandler.h"
 #include "PRunDataHandler.h"
@@ -234,17 +234,15 @@ Bool_t musrFT_filter_histo(Int_t &i, Int_t argc, Char_t *argv[], musrFT_startup_
         return false;
       }
     } else { // should be something like h0-hN with h0, hN numbers
-      TObjArray *tok = tstr.Tokenize("-");
-      if (tok->GetEntries() != 2) {
+      std::vector<std::string> tok = PStringUtils::Split(tstr.Data(), "-");
+      if (tok.size() != 2) {
         std::cerr << std::endl << ">> musrFT **ERROR** found --histo argument '" << tstr << "' which is not of the form <h0>-<hN>." << std::endl;
         startupParam.histo.clear();
         return false;
       }
-      TObjString *ostr;
       TString sstr("");
       Int_t first=0, last=0;
-      ostr = dynamic_cast<TObjString*>(tok->At(0));
-      sstr = ostr->GetString();
+      sstr = tok[0];
       if (sstr.IsDigit()) {
         first = sstr.Atoi();
       } else {
@@ -253,8 +251,7 @@ Bool_t musrFT_filter_histo(Int_t &i, Int_t argc, Char_t *argv[], musrFT_startup_
         startupParam.histo.clear();
         return false;
       }
-      ostr = dynamic_cast<TObjString*>(tok->At(1));
-      sstr = ostr->GetString();
+      sstr = tok[1];
       if (sstr.IsDigit()) {
         last = sstr.Atoi();
       } else {
@@ -273,10 +270,6 @@ Bool_t musrFT_filter_histo(Int_t &i, Int_t argc, Char_t *argv[], musrFT_startup_
       for (Int_t k=first; k<=last; k++) {
         startupParam.histo.push_back(k);
       }
-
-      // clean up
-      if (tok)
-        delete tok;
     }
   }