diff --git a/src/USER-REACTION/fix_bond_react.cpp b/src/USER-REACTION/fix_bond_react.cpp
index 57bc42cffd..a1154c9221 100644
--- a/src/USER-REACTION/fix_bond_react.cpp
+++ b/src/USER-REACTION/fix_bond_react.cpp
@@ -171,7 +171,7 @@ FixBondReact::FixBondReact(LAMMPS *lmp, int narg, char **arg) :
       if (strcmp(arg[iarg+1],"yes") == 0) { // default
         delete reset_mol_ids;
         reset_mol_ids = new ResetMolIDs(lmp);
-        reset_mol_ids->create_computes(group->names[igroup]);
+        reset_mol_ids->create_computes(id,group->names[igroup]);
         iarg += 2;
       }
       if (strcmp(arg[iarg+1],"no") == 0) {
diff --git a/src/reset_mol_ids.cpp b/src/reset_mol_ids.cpp
index efeb6a672a..1461a49f32 100644
--- a/src/reset_mol_ids.cpp
+++ b/src/reset_mol_ids.cpp
@@ -116,7 +116,7 @@ void ResetMolIDs::command(int narg, char **arg)
 
   // create computes
 
-  create_computes(groupid);
+  create_computes(NULL,groupid);
 
   // reset molecule IDs
 
@@ -140,22 +140,23 @@ void ResetMolIDs::command(int narg, char **arg)
    create computes used by reset_mol_ids
 ------------------------------------------------------------------------- */
 
-void ResetMolIDs::create_computes(char *groupid)
+void ResetMolIDs::create_computes(char *fixid, char *groupid)
 {
   int igroup = group->find(groupid);
   if (igroup == -1) error->all(FLERR,"Could not find reset_mol_ids group ID");
   groupbit = group->bitmask[igroup];
 
   // create instances of compute fragment/atom, compute reduce (if needed),
-  // and compute chunk/atom.  all use the group-ID for this command
+  // and compute chunk/atom.  all use the group-ID for this command.
+  // 'fixid' allows for creating independent instances of the computes
 
-  idfrag = "reset_mol_ids_FRAGMENT_ATOM";
+  idfrag = fmt::format("{}_reset_mol_ids_FRAGMENT_ATOM",fixid);
   if (singleflag)
     modify->add_compute(fmt::format("{} {} fragment/atom single yes",idfrag,groupid));
   else
     modify->add_compute(fmt::format("{} {} fragment/atom single no",idfrag,groupid));
 
-  idchunk = "reset_mol_ids_CHUNK_ATOM";
+  idchunk = fmt::format("{}_reset_mol_ids_CHUNK_ATOM",fixid);
   if (compressflag)
     modify->add_compute(fmt::format("{} {} chunk/atom molecule compress yes",
                                     idchunk,groupid));
diff --git a/src/reset_mol_ids.h b/src/reset_mol_ids.h
index 62543f6eda..9d2dd24bc8 100644
--- a/src/reset_mol_ids.h
+++ b/src/reset_mol_ids.h
@@ -30,7 +30,7 @@ class ResetMolIDs : protected Pointers {
   ResetMolIDs(class LAMMPS *);
   ~ResetMolIDs();
   void command(int, char **);
-  void create_computes(char *);
+  void create_computes(char *, char *);
   void reset();
 
 private: