diff --git a/c_tools/mock/generateMock.cpp b/c_tools/mock/generateMock.cpp
index 72670f6..ffbe1e1 100644
--- a/c_tools/mock/generateMock.cpp
+++ b/c_tools/mock/generateMock.cpp
@@ -645,7 +645,7 @@ int main(int argc, char **argv)
 #ifdef SDF_SUPPORT
   else if (args_info.sdf_given)
     {
-      loader = sdfLoader(args_info.sdf_arg, args_info.sdf_splitting_arg, NEED_POSITION|NEED_VELOCITY|NEED_GADGET_ID, preselector);
+      loader = sdfLoader(args_info.sdf_arg, NEED_POSITION|NEED_VELOCITY|NEED_GADGET_ID, args_info.sdf_splitting_arg, preselector);
     }
 #endif
   else
diff --git a/c_tools/mock/loaders/sdf_loader.cpp b/c_tools/mock/loaders/sdf_loader.cpp
index 28ad3a3..5023507 100644
--- a/c_tools/mock/loaders/sdf_loader.cpp
+++ b/c_tools/mock/loaders/sdf_loader.cpp
@@ -193,6 +193,7 @@ SimulationLoader *sdfLoader(const std::string& snapshot, int flags,
     {
       return 0;
     }
+   cout << "Loading SDF with artificial splitting " << num_splitting << endl;
   
   SDFgetintOrDefault(sdfp, "version", &fileversion, 1);
   if (fileversion == 1)
@@ -215,7 +216,8 @@ SimulationLoader *sdfLoader(const std::string& snapshot, int flags,
       
     }
   double h0;
-  h0 = hdr->Hubble*10.0*(one_kpc/one_Gyr);
+  hdr->Hubble *= 10.0;
+  h0 = hdr->Hubble*(one_kpc/one_Gyr);
 
   if (SDFhasname("R0", sdfp))
     {