diff --git a/c_tools/mock/generateMock.cpp b/c_tools/mock/generateMock.cpp
index 819ef84..d909b23 100644
--- a/c_tools/mock/generateMock.cpp
+++ b/c_tools/mock/generateMock.cpp
@@ -668,11 +668,11 @@ int main(int argc, char **argv)
     {
       loader = flashLoader(args_info.flash_arg, NEED_POSITION|NEED_VELOCITY|NEED_GADGET_ID, preselector); 
   }
+#ifdef SDF_SUPPORT
   else if (args_info.multidark_given)
     {
       loader = multidarkLoader(args_info.multidark_arg, preselector);      
     }
-#ifdef SDF_SUPPORT
   else if (args_info.sdf_given)
     {
       loader = sdfLoader(args_info.sdf_arg, NEED_POSITION|NEED_VELOCITY|NEED_GADGET_ID, args_info.sdf_splitting_arg, preselector);
diff --git a/c_tools/zobov2/jozov2_zones.cpp b/c_tools/zobov2/jozov2_zones.cpp
index ebfc974..19d3357 100644
--- a/c_tools/zobov2/jozov2_zones.cpp
+++ b/c_tools/zobov2/jozov2_zones.cpp
@@ -178,6 +178,13 @@ void buildZones(PARTICLE *p, pid_t np, pid_t *&jumped,
     {
       if (numinh[i] > 0) {
         z[h].core = i;
+        z[h].vol = 0;
+        z[h].np = z[h].npjoin = z[h].nadj = z[h].nhl = 0;
+        z[h].leak = 0;
+        z[h].adj = 0;
+        z[h].slv = 0;
+        z[h].denscontrast = 0;
+        z[h].vol = z[h].voljoin = 0;
         zonenum[i] = h;
         h++;
       } else {