diff --git a/src/dump_custom.cpp b/src/dump_custom.cpp
index 9df0264e55..4821171cc9 100644
--- a/src/dump_custom.cpp
+++ b/src/dump_custom.cpp
@@ -82,8 +82,8 @@ DumpCustom::DumpCustom(LAMMPS *lmp, int narg, char **arg) :
 
   pack_choice = new FnPtrPack[nfield];
   vtype = new int[nfield];
-  field2index = new int[nfield];
-  argindex = new int[nfield];
+  memory->create(field2index,nfield,"dump:field2index");
+  memory->create(argindex,nfield,"dump:argindex");
 
   buffer_allow = 1;
   buffer_flag = 1;
@@ -200,8 +200,8 @@ DumpCustom::~DumpCustom()
 
   delete [] pack_choice;
   delete [] vtype;
-  delete [] field2index;
-  delete [] argindex;
+  memory->destroy(field2index);
+  memory->destroy(argindex);
 
   delete [] idregion;
   memory->destroy(thresh_array);