diff --git a/c_tools/mock/generateMock.cpp b/c_tools/mock/generateMock.cpp
index 9a72aa5..ff84ace 100644
--- a/c_tools/mock/generateMock.cpp
+++ b/c_tools/mock/generateMock.cpp
@@ -453,9 +453,9 @@ void makeBoxFromParameter(SimuData *simu, SimuData* &boxed, generateMock_info& a
   boxed->BoxSize = simu->BoxSize;
 
   NcAtt *d_sub = f.get_att("data_subsampling");
-  if (d_sub == 0 || d_sub->as_double(0) != args_info.subsample_arg)
+  if (d_sub == 0 || d_sub->as_double(0)/args_info.subsample_arg-1. > 1.e-5)
    {
-     cerr << "Parameter file was not generated with the same simulation subsampling argument. Particles will be different. Stop here." << endl;
+     cerr << "Parameter file was not generated with the same simulation subsampling argument. Particles will be different. Stop here." << d_sub->as_double(0) << " " << args_info.subsample_arg <<endl;
      exit(1);
    }
 
diff --git a/c_tools/mock/loaders/multidark_loader.cpp b/c_tools/mock/loaders/multidark_loader.cpp
index fd944fa..26f1daf 100644
--- a/c_tools/mock/loaders/multidark_loader.cpp
+++ b/c_tools/mock/loaders/multidark_loader.cpp
@@ -105,15 +105,15 @@ public:
           p.Pos[2] == -99 && p.Vel[2] == -99)
         break;
 
-      p.Pos[0] = p.Pos[0]*rescale_position + shift;
-      p.Pos[1] = p.Pos[1]*rescale_position + shift;
-      p.Pos[2] = p.Pos[2]*rescale_position + shift;
-      p.Vel[2] = p.Vel[2]*rescale_velocity;
+      //p.Pos[0] = p.Pos[0]*rescale_position + shift;
+      //p.Pos[1] = p.Pos[1]*rescale_position + shift;
+      //p.Pos[2] = p.Pos[2]*rescale_position + shift;
+      //p.Vel[2] = p.Vel[2]*rescale_velocity;
 
       // enforce box size in case of roundoff error
       for (int k = 0; k < 3; k++) {
-        //if (p.Pos[k] < 0) p.Pos[k] += simu->BoxSize;
-        //if (p.Pos[k] >= simu->BoxSize) p.Pos[k] -= simu->BoxSize;
+        if (p.Pos[k] < 0) p.Pos[k] += simu->BoxSize;
+        if (p.Pos[k] >= simu->BoxSize) p.Pos[k] -= simu->BoxSize;
       }
 
       if (preproc != 0 && !preproc->accept(p))