diff --git a/src/neigh_gran.cpp b/src/neigh_gran.cpp
index 0475a52278..3549212c51 100644
--- a/src/neigh_gran.cpp
+++ b/src/neigh_gran.cpp
@@ -162,6 +162,7 @@ void Neighbor::granular_nsq_no_newton(NeighList *list)
 /* ----------------------------------------------------------------------
    granular particles
    N^2 / 2 search for neighbor pairs with full Newton's 3rd law
+   shear history must be accounted for when a neighbor pair is added
    pair added to list if atoms i and j are both owned and i < j
    if j is ghost only me or other proc adds pair
    decision based on itag,jtag tests
@@ -468,6 +469,7 @@ void Neighbor::granular_bin_no_newton(NeighList *list)
 /* ----------------------------------------------------------------------
    granular particles
    binned neighbor list construction with full Newton's 3rd law
+   shear history must be accounted for when a neighbor pair is added
    each owned atom i checks its own bin and other bins in Newton stencil
    every pair stored exactly once by some processor
 ------------------------------------------------------------------------- */
@@ -664,6 +666,7 @@ void Neighbor::granular_bin_newton(NeighList *list)
 /* ----------------------------------------------------------------------
    granular particles
    binned neighbor list construction with Newton's 3rd law for triclinic
+   shear history must be accounted for when a neighbor pair is added
    each owned atom i checks its own bin and other bins in triclinic stencil
    every pair stored exactly once by some processor
 ------------------------------------------------------------------------- */
diff --git a/src/pair_coul_wolf.cpp b/src/pair_coul_wolf.cpp
index b85bf0a10d..320eed3e9f 100644
--- a/src/pair_coul_wolf.cpp
+++ b/src/pair_coul_wolf.cpp
@@ -34,7 +34,10 @@ using namespace MathConst;
 
 /* ---------------------------------------------------------------------- */
 
-PairCoulWolf::PairCoulWolf(LAMMPS *lmp) : Pair(lmp) {}
+PairCoulWolf::PairCoulWolf(LAMMPS *lmp) : Pair(lmp)
+{
+  single_enable = 0;        // NOTE: single() method below is not yet correct
+}
 
 /* ---------------------------------------------------------------------- */