diff --git a/src/functionObjects/field/ddt/ddt.C b/src/functionObjects/field/ddt/ddt.C
index 26452c7673..0909fba34f 100644
--- a/src/functionObjects/field/ddt/ddt.C
+++ b/src/functionObjects/field/ddt/ddt.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2017-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2017-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -74,6 +74,7 @@ Foam::functionObjects::ddt::ddt
 :
     fieldExpression(name, runTime, dict)
 {
+    setResultName(typeName);
     read(dict);
 }
 
diff --git a/src/functionObjects/field/div/div.C b/src/functionObjects/field/div/div.C
index e1df394a5d..aead880845 100644
--- a/src/functionObjects/field/div/div.C
+++ b/src/functionObjects/field/div/div.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -63,7 +63,9 @@ Foam::functionObjects::div::div
 )
 :
     fieldExpression(name, runTime, dict)
-{}
+{
+    setResultName(typeName);
+}
 
 
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
diff --git a/src/functionObjects/field/fieldExpression/fieldExpression.C b/src/functionObjects/field/fieldExpression/fieldExpression.C
index 1b7eedcdbd..8b2fda1e69 100644
--- a/src/functionObjects/field/fieldExpression/fieldExpression.C
+++ b/src/functionObjects/field/fieldExpression/fieldExpression.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -41,24 +41,19 @@ namespace functionObjects
 
 void Foam::functionObjects::fieldExpression::setResultName
 (
-    const word& typeName,
-    const word& defaultArg
+    const word& functionName,
+    const word& defaultFieldName
 )
 {
-    if (fieldName_.empty())
-    {
-        fieldName_ = defaultArg;
-    }
-
     if (resultName_.empty())
     {
-        if (fieldName_ != defaultArg)
+        if (defaultFieldName.empty() || fieldName_ != defaultFieldName)
         {
-            resultName_ = typeName + '(' + fieldName_ + ')';
+            resultName_ = functionName + '(' + fieldName_ + ')';
         }
         else
         {
-            resultName_ = typeName;
+            resultName_ = functionName;
         }
     }
 }
diff --git a/src/functionObjects/field/fieldExpression/fieldExpression.H b/src/functionObjects/field/fieldExpression/fieldExpression.H
index 4216886c17..20e7b3dacb 100644
--- a/src/functionObjects/field/fieldExpression/fieldExpression.H
+++ b/src/functionObjects/field/fieldExpression/fieldExpression.H
@@ -70,7 +70,11 @@ protected:
 
         virtual bool calc() = 0;
 
-        void setResultName(const word& typeName, const word& defaultArg);
+        void setResultName
+        (
+            const word& functionName,
+            const word& defaultFieldName = word::null
+        );
 
         template<class Type>
         bool foundObject(const word& name);
diff --git a/src/functionObjects/field/fieldsExpression/fieldsExpression.C b/src/functionObjects/field/fieldsExpression/fieldsExpression.C
index ae096995c1..6a5f56eadd 100644
--- a/src/functionObjects/field/fieldsExpression/fieldsExpression.C
+++ b/src/functionObjects/field/fieldsExpression/fieldsExpression.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -41,20 +41,20 @@ namespace functionObjects
 
 void Foam::functionObjects::fieldsExpression::setResultName
 (
-    const word& typeName,
-    const wordList& defaultArgs
+    const word& functionName,
+    const wordList& defaultFieldNames
 )
 {
     if (fieldNames_.empty())
     {
-        fieldNames_ = defaultArgs;
+        fieldNames_ = defaultFieldNames;
     }
 
     if (resultName_.empty())
     {
         if (!fieldNames_.empty())
         {
-            resultName_ = typeName + '(' + fieldNames_[0];
+            resultName_ = functionName + '(' + fieldNames_[0];
             for (label i=1; i<fieldNames_.size(); i++)
             {
                 resultName_ += ',' + fieldNames_[i];
@@ -63,7 +63,7 @@ void Foam::functionObjects::fieldsExpression::setResultName
         }
         else
         {
-            resultName_ = typeName;
+            resultName_ = functionName;
         }
     }
 }
diff --git a/src/functionObjects/field/fieldsExpression/fieldsExpression.H b/src/functionObjects/field/fieldsExpression/fieldsExpression.H
index 103df3e758..7c6dc8870b 100644
--- a/src/functionObjects/field/fieldsExpression/fieldsExpression.H
+++ b/src/functionObjects/field/fieldsExpression/fieldsExpression.H
@@ -70,8 +70,8 @@ protected:
 
         void setResultName
         (
-            const word& typeName,
-            const wordList& defaultArg = wordList::null()
+            const word& functionName,
+            const wordList& defaultFieldNames = wordList::null()
         );
 
         //- Call 'calcFieldType' for the given functionObject
diff --git a/src/functionObjects/field/grad/grad.C b/src/functionObjects/field/grad/grad.C
index 2cb5100d78..e8d65e9359 100644
--- a/src/functionObjects/field/grad/grad.C
+++ b/src/functionObjects/field/grad/grad.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -62,6 +62,7 @@ Foam::functionObjects::grad::grad
 :
     fieldExpression(name, runTime, dict)
 {
+    setResultName(typeName);
     read(dict);
 }
 
diff --git a/src/functionObjects/field/log/log.C b/src/functionObjects/field/log/log.C
index 14c95b04a5..b0ae3b292a 100644
--- a/src/functionObjects/field/log/log.C
+++ b/src/functionObjects/field/log/log.C
@@ -99,6 +99,7 @@ Foam::functionObjects::log::log
     clipValue_(0),
     checkDimensions_(true)
 {
+    setResultName(typeName);
     read(dict);
 }
 
diff --git a/src/functionObjects/field/mag/mag.C b/src/functionObjects/field/mag/mag.C
index 9110fea454..f75feb7f54 100644
--- a/src/functionObjects/field/mag/mag.C
+++ b/src/functionObjects/field/mag/mag.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -65,6 +65,7 @@ Foam::functionObjects::mag::mag
 :
     fieldExpression(name, runTime, dict)
 {
+    setResultName(typeName);
     read(dict);
 }
 
diff --git a/src/functionObjects/field/magSqr/magSqr.C b/src/functionObjects/field/magSqr/magSqr.C
index 8bb2fc4604..f2554961b7 100644
--- a/src/functionObjects/field/magSqr/magSqr.C
+++ b/src/functionObjects/field/magSqr/magSqr.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -65,6 +65,7 @@ Foam::functionObjects::magSqr::magSqr
 :
     fieldExpression(name, runTime, dict)
 {
+    setResultName(typeName);
     read(dict);
 }
 
diff --git a/src/functionObjects/field/randomise/randomise.C b/src/functionObjects/field/randomise/randomise.C
index 613dc92438..c093e8557d 100644
--- a/src/functionObjects/field/randomise/randomise.C
+++ b/src/functionObjects/field/randomise/randomise.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -65,6 +65,7 @@ Foam::functionObjects::randomise::randomise
 :
     fieldExpression(name, runTime, dict)
 {
+    setResultName(typeName);
     read(dict);
 }
 
diff --git a/src/functionObjects/field/scale/scale.C b/src/functionObjects/field/scale/scale.C
index 3608e36f74..820103f3aa 100644
--- a/src/functionObjects/field/scale/scale.C
+++ b/src/functionObjects/field/scale/scale.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2019 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -66,6 +66,7 @@ Foam::functionObjects::scale::scale
     fieldExpression(name, runTime, dict),
     scale_(0)
 {
+    setResultName(typeName);
     read(dict);
 }
 
@@ -81,12 +82,6 @@ Foam::functionObjects::scale::~scale()
 bool Foam::functionObjects::scale::read(const dictionary& dict)
 {
     fieldExpression::read(dict);
-
-    if (resultName_.empty())
-    {
-        resultName_ = "scale(" + fieldName_ + ")";
-    }
-
     dict.lookup("scale") >> scale_;
 
     return true;