diff --git a/openmc/tallies.py b/openmc/tallies.py
index af19549a7c..9ef5148966 100644
--- a/openmc/tallies.py
+++ b/openmc/tallies.py
@@ -2986,6 +2986,9 @@ class Tally(object):
                     elif filter_type == 'distribcell':
                         bin_indices = [0]
                         num_bins = find_filter.num_bins
+                    elif filter_type == 'mesh':
+                        bin_indices = [0]
+                        num_bins = find_filter.mesh.num_mesh_cells
                     else:
                         bin_indices.append(bin_index)
                         num_bins += 1