diff --git a/src/USER-REAXC/pair_reax_c.cpp b/src/USER-REAXC/pair_reax_c.cpp
index 4a328a7b18..f30a82873f 100644
--- a/src/USER-REAXC/pair_reax_c.cpp
+++ b/src/USER-REAXC/pair_reax_c.cpp
@@ -223,15 +223,12 @@ void PairReaxC::coeff( int nargs, char **args )
  
   // read args that map atom types to elements in potential file
   // map[i] = which element the Ith atom type is, -1 if NULL
-  // NOTE: for now throw an error if NULL is used to disallow use with hybrid
-  //       REAX/C lib will have to be modified to allow this
 
   int itmp;
   int nreax_types = system->reax_param.num_atom_types;
   for (int i = 3; i < nargs; i++) {
     if (strcmp(args[i],"NULL") == 0) {
       map[i-2] = -1;
-      error->all("Cannot currently use pair reax/c with pair hybrid");
       continue;
     }
 
@@ -242,6 +239,7 @@ void PairReaxC::coeff( int nargs, char **args )
 
     if (itmp < 0 || itmp >= nreax_types)
       error->all("Non-existent ReaxFF type");
+
   }
 
   int n = atom->ntypes;
@@ -292,7 +290,7 @@ void PairReaxC::init_style( )
 
   cutmax = MAX3(control->nonb_cut, control->hbond_cut, 2*control->bond_cut);
 
-  for(int i = 0; i < LIST_N; ++i )
+  for( int i = 0; i < LIST_N; ++i )
     lists[i].allocated = 0;
 
   if (fix_reax == NULL) {
diff --git a/src/USER-REAXC/reaxc_allocate.cpp b/src/USER-REAXC/reaxc_allocate.cpp
index de2f117bbc..e31c86d491 100644
--- a/src/USER-REAXC/reaxc_allocate.cpp
+++ b/src/USER-REAXC/reaxc_allocate.cpp
@@ -512,7 +512,7 @@ int Reallocate_Bonds_List( reax_system *system, reax_list *bonds,
   *total_bonds = 0;
   *est_3body = 0;
   for( i = 0; i < system->N; ++i ){
-    *est_3body += SQR( Num_Entries( i, bonds ) );
+    *est_3body += SQR(system->my_atoms[i].num_bonds);
     // commented out - already updated in validate_lists in forces.c
     // system->my_atoms[i].num_bonds = MAX( Num_Entries(i,bonds)*2, MIN_BONDS );
     *total_bonds += system->my_atoms[i].num_bonds;
diff --git a/src/USER-REAXC/reaxc_nonbonded.cpp b/src/USER-REAXC/reaxc_nonbonded.cpp
index e03c9ef102..ed475606fa 100644
--- a/src/USER-REAXC/reaxc_nonbonded.cpp
+++ b/src/USER-REAXC/reaxc_nonbonded.cpp
@@ -388,7 +388,7 @@ void LR_vdW_Coulomb( reax_system *system, storage *workspace,
 	
     lr->e_vdW = Tap * twbp->D * (exp1 - 2.0 * exp2);
     lr->CEvd = dTap * twbp->D * (exp1 - 2.0 * exp2) -
-      Tap * twbp->D * (twbp->alpha / twbp->r_vdW) * (exp1 - exp2);
+      Tap * twbp->D * (twbp->alpha / twbp->r_vdW) * (exp1 - exp2) / r_ij;
   }
 
   if(system->reax_param.gp.vdw_type==2 || system->reax_param.gp.vdw_type==3)
@@ -397,7 +397,7 @@ void LR_vdW_Coulomb( reax_system *system, storage *workspace,
       lr->e_vdW += Tap * e_core;
       
       de_core = -(twbp->acore/twbp->rcore) * e_core;
-      lr->CEvd += dTap * e_core + Tap * de_core;
+      lr->CEvd += dTap * e_core + Tap * de_core / r_ij;
     }