diff --git a/src/compute_chunk_atom.cpp b/src/compute_chunk_atom.cpp
index 89c90fb58c..9fc46a89d1 100644
--- a/src/compute_chunk_atom.cpp
+++ b/src/compute_chunk_atom.cpp
@@ -133,6 +133,7 @@ ComputeChunkAtom::ComputeChunkAtom(LAMMPS *lmp, int narg, char **arg) :
     corigin_user[cdim2] = force->numeric(FLERR,arg[iarg+1]);
     cradmin_user = force->numeric(FLERR,arg[iarg+2]);
     cradmax_user = force->numeric(FLERR,arg[iarg+3]);
+
     ncbin = force->inumeric(FLERR,arg[iarg+4]);
     iarg += 5;
 
@@ -423,8 +424,8 @@ ComputeChunkAtom::ComputeChunkAtom(LAMMPS *lmp, int narg, char **arg) :
       } else {
         corigin_user[cdim1] *= xscale;
         corigin_user[cdim2] *= yscale;
-        cradmin_user *= zscale;
-        cradmax_user *= zscale;
+        cradmin_user *= xscale;
+        cradmax_user *= xscale;
       }
     }
   }
@@ -1320,10 +1321,9 @@ int ComputeChunkAtom::setup_cylinder_bins()
   // lamda2x works for either orthogonal or triclinic
 
   if (scaleflag == REDUCED) {
-    corigin_user[dim[0]] = 0.5;       // unused 3rd coord for axis dim
     domain->lamda2x(corigin_user,corigin);
-    cradmin = sradmin_user * (domain->boxhi[cdim1]-domain->boxlo[cdim1]);
-    cradmax = sradmax_user * (domain->boxhi[cdim1]-domain->boxlo[cdim1]);
+    cradmin = cradmin_user * (domain->boxhi[cdim1]-domain->boxlo[cdim1]);
+    cradmax = cradmax_user * (domain->boxhi[cdim1]-domain->boxlo[cdim1]);
   } else {
     corigin[cdim1] = corigin_user[cdim1];
     corigin[cdim2] = corigin_user[cdim2];
@@ -1408,7 +1408,7 @@ void ComputeChunkAtom::bin_volumes()
     if (scaleflag == REDUCED) prd = domain->prd_lamda;
     else prd = domain->prd;
     double slabthick = domain->prd[dim[0]] * delta[0]/prd[dim[0]];
-      
+
     // area lo/hi of concentric circles in radial direction
 
     int iradbin;
diff --git a/src/compute_chunk_atom.h b/src/compute_chunk_atom.h
index bbfa1625ee..c1609ff6bc 100644
--- a/src/compute_chunk_atom.h
+++ b/src/compute_chunk_atom.h
@@ -75,8 +75,8 @@ class ComputeChunkAtom : public Compute {
 
   // cylindrical spatial bins
 
-  double corigin_user[2];
-  double corigin[2];
+  double corigin_user[3];
+  double corigin[3];
   double cradmin_user,cradmax_user;
   double cradmin,cradmax,cinvrad;
   int cdim1,cdim2;