diff --git a/src/lattice_sample b/src/lattice_sample
index 8dc13c23c..3991e768d 100644
--- a/src/lattice_sample
+++ b/src/lattice_sample
@@ -47,5 +47,5 @@ material 41 -1.0  &
 source box -4 -4 -4  4 4 4
 
 xs_data /opt/serpent/xsdata/endfb7
-criticality 20 10 100000
+criticality 20 10 10000
 verbosity 7