diff --git a/src/functionObjects/field/streamLine/streamLine.C b/src/functionObjects/field/streamLine/streamLine.C
index 252b4d600f..0c66a5fce0 100644
--- a/src/functionObjects/field/streamLine/streamLine.C
+++ b/src/functionObjects/field/streamLine/streamLine.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -311,22 +311,7 @@ bool Foam::functionObjects::streamLine::read(const dictionary& dict)
     Info<< type() << " " << name() << ":" << nl;
 
     dict.lookup("fields") >> fields_;
-    if (dict.found("U"))
-    {
-        dict.lookup("U") >> UName_;
-    }
-    else
-    {
-        UName_ = "U";
-        if (dict.found("U"))
-        {
-            IOWarningInFunction(dict)
-                << "Using deprecated entry \"U\"."
-                << " Please use \"UName\" instead."
-                << endl;
-            dict.lookup("U") >> UName_;
-        }
-    }
+    dict.lookup("U") >> UName_;
 
     if (findIndex(fields_, UName_) == -1)
     {
diff --git a/src/functionObjects/field/streamLine/streamLine.H b/src/functionObjects/field/streamLine/streamLine.H
index 008036b289..7c0995e69f 100644
--- a/src/functionObjects/field/streamLine/streamLine.H
+++ b/src/functionObjects/field/streamLine/streamLine.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -41,16 +41,20 @@ Description
         writeControl    writeTime;
 
         setFormat       vtk;
+        U               U;
         trackForward    yes;
+
         fields
         (
             U
             p
         );
+
         lifeTime        10000;
         trackLength     1e-3;
         nSubCycle       5;
         cloudName       particleTracks;
+
         seedSampleSet   uniform;
         uniformCoeffs
         {
diff --git a/src/functionObjects/field/wallBoundedStreamLine/wallBoundedStreamLine.C b/src/functionObjects/field/wallBoundedStreamLine/wallBoundedStreamLine.C
index e918fcf970..7fd47295f1 100644
--- a/src/functionObjects/field/wallBoundedStreamLine/wallBoundedStreamLine.C
+++ b/src/functionObjects/field/wallBoundedStreamLine/wallBoundedStreamLine.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -427,24 +427,7 @@ bool Foam::functionObjects::wallBoundedStreamLine::read(const dictionary& dict)
     Info<< type() << " " << name() << ":" << nl;
 
     dict.lookup("fields") >> fields_;
-    if (dict.found("U"))
-    {
-        dict.lookup("U") >> UName_;
-    }
-    else
-    {
-        UName_ = "U";
-        if (dict.found("U"))
-        {
-            IOWarningInFunction
-            (
-                dict
-            )   << "Using deprecated entry \"U\"."
-                << " Please use \"UName\" instead."
-                << endl;
-            dict.lookup("U") >> UName_;
-        }
-    }
+    dict.lookup("U") >> UName_;
 
     if (findIndex(fields_, UName_) == -1)
     {