diff --git a/tutorials/incompressible/simpleFoam/motorBike/system/controlDict b/tutorials/incompressible/simpleFoam/motorBike/system/controlDict
index eed783b8a95f21d2c362180b881e9f8ef612f72f..35dc084c0e7c595a94e59a6aeda83a317237bb4a 100644
--- a/tutorials/incompressible/simpleFoam/motorBike/system/controlDict
+++ b/tutorials/incompressible/simpleFoam/motorBike/system/controlDict
@@ -82,7 +82,7 @@ functions
         // Names of fields to sample. Should contain above velocity field!
         fields (p U k);
 
-        // Cells particles can travel before being removed
+        // Steps particles can travel before being removed
         lifeTime        10000;
 
         // Number of steps per cell (estimate). Set to 1 to disable subcycling.
diff --git a/tutorials/incompressible/simpleFoam/pitzDaily/system/controlDict b/tutorials/incompressible/simpleFoam/pitzDaily/system/controlDict
index e608ae6e77483c7f15b6135d93f7648c7d6b170d..04c95c8f90957f470203da2d721c0ec3e4a6f1fb 100644
--- a/tutorials/incompressible/simpleFoam/pitzDaily/system/controlDict
+++ b/tutorials/incompressible/simpleFoam/pitzDaily/system/controlDict
@@ -84,7 +84,7 @@ functions
         // Names of fields to sample. Should contain above velocity field!
         fields (p k U);
 
-        // Cells particles can travel before being removed
+        // Steps particles can travel before being removed
         lifeTime        10000;
 
         // Number of steps per cell (estimate). Set to 1 to disable subcycling.