diff --git a/src/RIGID/fix_rigid.cpp b/src/RIGID/fix_rigid.cpp
index 9c39518508..41843fecf0 100644
--- a/src/RIGID/fix_rigid.cpp
+++ b/src/RIGID/fix_rigid.cpp
@@ -68,6 +68,7 @@ FixRigid::FixRigid(LAMMPS *lmp, int narg, char **arg) :
   create_attribute = 1;
   dof_flag = 1;
   enforce2d_flag = 1;
+  centroidstressflag = CENTROID_NOTAVAIL;
 
   MPI_Comm_rank(world,&me);
   MPI_Comm_size(world,&nprocs);