diff --git a/etc/caseDicts/postProcessing/fields/fieldAverage b/etc/caseDicts/postProcessing/fields/fieldAverage
new file mode 100644
index 0000000000..1689646ca0
--- /dev/null
+++ b/etc/caseDicts/postProcessing/fields/fieldAverage
@@ -0,0 +1,17 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Version:  dev
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+Description
+    Calculates and writes the time averages of given list of fields.
+
+\*---------------------------------------------------------------------------*/
+
+#includeEtc "caseDicts/postProcessing/fields/fieldAverage.cfg"
+
+fields          (<field_names>);
+
+// ************************************************************************* //
diff --git a/etc/caseDicts/postProcessing/fields/writeObjects b/etc/caseDicts/postProcessing/fields/writeObjects
index 870174e417..179170eb4a 100644
--- a/etc/caseDicts/postProcessing/fields/writeObjects
+++ b/etc/caseDicts/postProcessing/fields/writeObjects
@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 Description
-    Writes out specified objects, e.g. fields, stored on the case database.
+    Writes the specified objects, e.g. fields, stored in the case database.
 
 \*---------------------------------------------------------------------------*/
 
diff --git a/tutorials/multiphase/reactingTwoPhaseEulerFoam/RAS/bubbleColumn/system/controlDict b/tutorials/multiphase/reactingTwoPhaseEulerFoam/RAS/bubbleColumn/system/controlDict
index 4b13f832e0..60563fe0e9 100644
--- a/tutorials/multiphase/reactingTwoPhaseEulerFoam/RAS/bubbleColumn/system/controlDict
+++ b/tutorials/multiphase/reactingTwoPhaseEulerFoam/RAS/bubbleColumn/system/controlDict
@@ -53,18 +53,7 @@ maxDeltaT       1;
 
 functions
 {
-    fieldAverage1
-    {
-        #includeEtc "caseDicts/postProcessing/fields/fieldAverage.cfg"
-
-        fields
-        (
-            U.air
-            U.water
-            alpha.air
-            p
-        );
-    }
+    #includeFunc fieldAverage(U.air, U.water, alpha.air, p)
 }