diff --git a/e2-estia.i b/e2-estia.i
index 7d3068f..8d7e3d2 100644
--- a/e2-estia.i
+++ b/e2-estia.i
@@ -158,7 +158,7 @@ c -------------------------------------------------------
 c --------------- PHYSICS CARDS --------------------------
 c -------------------------------------------------------
 c dbcn 375642321 j j j j j j j j j j j 15291711
-nps 1e6
+nps 1e8
 c histp
 mode n p n h / d t s a
 c volume calculated for tally cells (spheres)