diff --git a/parm/postxconfig-NT-fv3lam_rrfs.txt b/parm/postxconfig-NT-fv3lam_rrfs.txt
index 5770f555a..8cb2af807 100644
--- a/parm/postxconfig-NT-fv3lam_rrfs.txt
+++ b/parm/postxconfig-NT-fv3lam_rrfs.txt
@@ -12941,7 +12941,7 @@ surface
 0
 0.0
 1
-4.0
+6.0
 0
 0
 0