diff --git a/src/criticality.F90 b/src/criticality.F90
index c7978d4e8..cff3f8d70 100644
--- a/src/criticality.F90
+++ b/src/criticality.F90
@@ -22,7 +22,7 @@ contains
 
     integer(8) :: i  ! index over histories in single cycle
 
-    if (master) call header("BEGIN SIMULATION", level=1)
+    if (master) call header("CRITICALITY TRANSPORT SIMULATION", level=1)
 
     tallies_on = .false.
     call timer_start(time_inactive)
diff --git a/src/fixed_source.F90 b/src/fixed_source.F90
index 6f0e0ebb7..530c11549 100644
--- a/src/fixed_source.F90
+++ b/src/fixed_source.F90
@@ -19,7 +19,7 @@ contains
 
     integer(8) :: i ! index over histories in single cycle
 
-    if (master) call header("BEGIN SIMULATION", level=1)
+    if (master) call header("FIXED SOURCE TRANSPORT SIMULATION", level=1)
 
     ! Allocate particle and dummy source site
     allocate(p)