diff --git a/src/neighbor.cpp b/src/neighbor.cpp
index bc45df5592b81b70b96fe7ceba4c8516f9fba137..98b1dc402e4240da8627ff3eb75f1439f9d33f7a 100644
--- a/src/neighbor.cpp
+++ b/src/neighbor.cpp
@@ -118,6 +118,7 @@ Neighbor::Neighbor(LAMMPS *lmp) : Pointers(lmp)
   requests = NULL;
 
   old_style = BIN;
+  old_triclinic = 0;
   old_nrequest = 0;
   old_requests = NULL;
 
@@ -382,10 +383,12 @@ void Neighbor::init()
 
   // test if pairwise lists need to be re-created
   // no need to re-create if:
-  // neigh style has not changed and current requests = old requests
+  //   neigh style and triclinic has not changed and
+  //   current requests = old requests
 
   int same = 1;
   if (style != old_style) same = 0;
+  if (triclinic != old_triclinic) same = 0;
   if (nrequest != old_nrequest) same = 0;
   else
     for (i = 0; i < nrequest; i++)
@@ -629,6 +632,7 @@ void Neighbor::init()
   nrequest = maxrequest = 0;
   requests = NULL;
   old_style = style;
+  old_triclinic = triclinic;
 
   // ------------------------------------------------------------------
   // topology lists
diff --git a/src/neighbor.h b/src/neighbor.h
index 6a21950af68948688580e10483097fc8a4c2189c..543a5e3bf6d6a78b701b947eb907d2fae1700d58 100644
--- a/src/neighbor.h
+++ b/src/neighbor.h
@@ -43,6 +43,7 @@ class Neighbor : protected Pointers {
 
   int old_style;                   // previous run info to avoid
   int old_nrequest;                // re-creation of pairwise neighbor lists
+  int old_triclinic;
   class NeighRequest **old_requests;
   
   int nlist;                       // pairwise neighbor lists