diff --git a/src/pair.cpp b/src/pair.cpp
index 2df60175d5..3908dbb324 100644
--- a/src/pair.cpp
+++ b/src/pair.cpp
@@ -66,7 +66,7 @@ Pair::Pair(LAMMPS *lmp) : Pointers(lmp)
   single_extra = 0;
   svector = NULL;
 
-  ewaldflag = pppmflag = msmflag = dispersionflag = tip4pflag = 0;
+  ewaldflag = pppmflag = msmflag = dispersionflag = tip4pflag = dipoleflag = 0;
 
   // pair_modify settings
 
diff --git a/src/pair.h b/src/pair.h
index 8eb6854c09..72eb257c85 100644
--- a/src/pair.h
+++ b/src/pair.h
@@ -56,6 +56,7 @@ class Pair : protected Pointers {
   int msmflag;                   // 1 if compatible with MSM solver
   int dispersionflag;            // 1 if compatible with LJ/dispersion solver
   int tip4pflag;                 // 1 if compatible with TIP4P solver
+  int dipoleflag;                // 1 if compatible with dipole solver
 
   int tail_flag;                 // pair_modify flag for LJ tail correction
   double etail,ptail;            // energy/pressure tail corrections