diff --git a/tracy/tracy/src/read_script.cc b/tracy/tracy/src/read_script.cc
index 001437d9687c9d4c09be27ccd6e20430e65a96c9..3b3ba6b629860e7cbd412250ba0e415a6f1fe1d0 100644
--- a/tracy/tracy/src/read_script.cc
+++ b/tracy/tracy/src/read_script.cc
@@ -56,7 +56,7 @@ bool ErrorCouplingFlag = false; long err_seed=0L; double err_rms=0.0;
 bool CouplingFlag = false;
 
 bool MomentumAccFlag = false;
-char DimTrack[3] = "4D";
+char TrackDim[3] = "6D";
 long  _MomentumAccFlag_istart=1L, _MomentumAccFlag_istop=108L,
      _MomentumAccFlag_nstepn=100L, _MomentumAccFlag_nstepp=100L;
 double _MomentumAccFlag_deltaminn=0.01, _MomentumAccFlag_deltamaxn=0.05;
@@ -337,7 +337,7 @@ void read_script(const char *param_file_name, bool rd_lat)
         } 
       }
        else if (strcmp("MomentumAccFlag", name) == 0){
-        sscanf(line, "%*s %s %s %ld %ld %lf %lf %ld %lf %lf %ld", str,DimTrack,
+        sscanf(line, "%*s %s %s %ld %ld %lf %lf %ld %lf %lf %ld", str,TrackDim,
         		&_MomentumAccFlag_istart, &_MomentumAccFlag_istop,
         		&_MomentumAccFlag_deltaminp, &_MomentumAccFlag_deltamaxp, &_MomentumAccFlag_nstepp,
         		&_MomentumAccFlag_deltaminn, &_MomentumAccFlag_deltamaxn, &_MomentumAccFlag_nstepn