diff --git a/config/astaroth.conf b/config/astaroth.conf
index 944364b..32f50a3 100644
--- a/config/astaroth.conf
+++ b/config/astaroth.conf
@@ -7,7 +7,7 @@
  */
 AC_nx = 128
 AC_ny = 128
-AC_nz = 6
+AC_nz = 128
 
 AC_dsx = 0.04908738521
 AC_dsy = 0.04908738521