diff --git a/tallies/boundary_wall_meshes.i b/tallies/boundary_wall_meshes.i
index 71cdf54..a21a922 100644
--- a/tallies/boundary_wall_meshes.i
+++ b/tallies/boundary_wall_meshes.i
@@ -18,7 +18,7 @@ tmesh
   corb31   -10 10
   corc31   -10 15i 310
   rmesh101:n dose 1 trans 103
-  cora101   0 14i 300
+  cora101   0 46i 940
   corb101   -140 5i -20 19i 20 5i 140
   corc101   -140 5i -20 19i 20 5i 140
 c Official ESS dose conversion factors from n/cm²/s to Sv/h