diff --git a/src/neigh_list.cpp b/src/neigh_list.cpp
index 934b9f7d9b..93f4b13bf2 100644
--- a/src/neigh_list.cpp
+++ b/src/neigh_list.cpp
@@ -88,7 +88,6 @@ NeighList::NeighList(LAMMPS *lmp) : Pointers(lmp)
 
   // USER-DPD package
 
-  for (int i = 0; i < 8; i++) AIRct_ssa[i] = 0;
   np = NULL;
 }
 
diff --git a/src/neigh_list.h b/src/neigh_list.h
index d633ba839e..755a1bf134 100644
--- a/src/neigh_list.h
+++ b/src/neigh_list.h
@@ -92,7 +92,6 @@ class NeighList : protected Pointers {
 
   // USER-DPD package and Shardlow Splitting Algorithm (SSA) support
 
-  int AIRct_ssa[8]; // count of how many atoms in each AIR
   class NPair *np;           // ptr to NPair instance I depend on
 
   // methods