diff --git a/tutorials/incompressible/channelFoam/channel395/constant/postChannelDict b/tutorials/incompressible/channelFoam/channel395/constant/postChannelDict
index 89fcd50809..96bbe30d76 100644
--- a/tutorials/incompressible/channelFoam/channel395/constant/postChannelDict
+++ b/tutorials/incompressible/channelFoam/channel395/constant/postChannelDict
@@ -15,10 +15,14 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+// Seed patches to start layering from
 patches         ( bottomWall );
 
+// Direction in which the layers are
 component       y;
 
+// Is the mesh symmetric? If so average(symmetric fields) or
+// subtract(asymmetric) contributions from both halves
 symmetric       true;
 
 
diff --git a/tutorials/incompressible/channelFoam/channel395/system/controlDict b/tutorials/incompressible/channelFoam/channel395/system/controlDict
index 2ca28c29a1..218a76d861 100644
--- a/tutorials/incompressible/channelFoam/channel395/system/controlDict
+++ b/tutorials/incompressible/channelFoam/channel395/system/controlDict
@@ -43,7 +43,35 @@ timePrecision   6;
 
 runTimeModifiable yes;
 
-functions       ( fieldAverage1 { type fieldAverage ; functionObjectLibs ( "libfieldFunctionObjects.so" ) ; enabled true ; outputControl outputTime ; fields ( U { mean on ; prime2Mean on ; base time ; } p { mean on ; prime2Mean on ; base time ; } ) ; } );
+functions
+(
+    fieldAverage1
+    {
+        type fieldAverage;
+
+        functionObjectLibs ( "libfieldFunctionObjects.so" );
+
+        enabled true;
+
+        outputControl outputTime;
+
+        fields
+        (
+            U
+            {
+                mean on;
+                prime2Mean on;
+                base time;
+            }
+            p
+            {
+                mean on;
+                prime2Mean on;
+                base time;
+            }
+        );
+    }
+);
 
 
 // ************************************************************************* //