diff --git a/src/USER-LB/fix_lb_rigid_pc_sphere.cpp b/src/USER-LB/fix_lb_rigid_pc_sphere.cpp
index 6a1e4e531e..8031bbbf98 100755
--- a/src/USER-LB/fix_lb_rigid_pc_sphere.cpp
+++ b/src/USER-LB/fix_lb_rigid_pc_sphere.cpp
@@ -107,10 +107,10 @@ FixLbRigidPCSphere::FixLbRigidPCSphere(LAMMPS *lmp, int narg, char **arg) :
       if (mask[i] & groupbit) maxmol_tag = MAX(maxmol_tag,molecule[i]);
 
     tagint itmp;
-    MPI_Allreduce(&maxmol_tag,&itmp,1,MPI__LMP_TAGINT,MPI_MAX,world);
+    MPI_Allreduce(&maxmol_tag,&itmp,1,MPI_LMP_TAGINT,MPI_MAX,world);
     if (itmp+1 > MAXSMALLINT) 
       error->all(FLERR,"Too many molecules for fix lb/rigid/pc/sphere");
-    maxmol = (int) itmp;
+    int maxmol = (int) itmp;
 
     int *ncount;
     memory->create(ncount,maxmol+1,"rigid:ncount");