diff --git a/src/postProcessing/functionObjects/field/streamLine/controlDict b/src/postProcessing/functionObjects/field/streamLine/controlDict
index 048b7af4f3376fa0e69e9c740107315d06d7a58f..4d51dd82e1f758f5af36f68e927088bb87b14d90 100644
--- a/src/postProcessing/functionObjects/field/streamLine/controlDict
+++ b/src/postProcessing/functionObjects/field/streamLine/controlDict
@@ -60,7 +60,7 @@ functions
         setFormat       vtk; //gnuplot; //xmgr; //raw; //jplot;
 
         // Velocity field to use for tracking.
-        U U;
+        UName U;
 
         // Interpolation method. Default is cellPoint. See sampleDict.
         //interpolationScheme pointMVC;
diff --git a/src/postProcessing/functionObjects/field/streamLine/streamLine.C b/src/postProcessing/functionObjects/field/streamLine/streamLine.C
index ae902f9c54f1ab1ba50713fc15cc795835b95c48..03a5b8b539c4b803a9b050dda20a0f9cb3e43ef6 100644
--- a/src/postProcessing/functionObjects/field/streamLine/streamLine.C
+++ b/src/postProcessing/functionObjects/field/streamLine/streamLine.C
@@ -318,7 +318,22 @@ void Foam::streamLine::read(const dictionary& dict)
     {
         //dict_ = dict;
         dict.lookup("fields") >> fields_;
-        UName_ = dict.lookupOrDefault<word>("U", "U");
+        if (dict.found("UName"))
+        {
+            dict.lookup("UName") >> UName_;
+        }
+        else
+        {
+            UName_ = "U";
+            if (dict.found("U"))
+            {
+                IOWarningIn("streamLine::read(const dictionary&)", dict)
+                    << "Using deprecated entry \"U\"."
+                    << " Please use \"UName\" instead."
+                    << endl;
+                dict.lookup("U") >> UName_;
+            }
+        }
         dict.lookup("trackForward") >> trackForward_;
         dict.lookup("lifeTime") >> lifeTime_;
         if (lifeTime_ < 1)
diff --git a/tutorials/incompressible/simpleFoam/motorBike/system/streamLines b/tutorials/incompressible/simpleFoam/motorBike/system/streamLines
index 1f9488d8c2fce94156d99abf5403eb02936aa99b..82c3f1d68c2c92f7c1c55f84dbf15627305ffc88 100644
--- a/tutorials/incompressible/simpleFoam/motorBike/system/streamLines
+++ b/tutorials/incompressible/simpleFoam/motorBike/system/streamLines
@@ -17,7 +17,7 @@ streamLines
     setFormat       vtk; //gnuplot; //xmgr; //raw; //jplot;
 
     // Velocity field to use for tracking.
-    U U;
+    UName U;
 
     // Tracked forwards (+U) or backwards (-U)
     trackForward    true;
diff --git a/tutorials/incompressible/simpleFoam/pitzDaily/system/controlDict b/tutorials/incompressible/simpleFoam/pitzDaily/system/controlDict
index a3baf4a417fd5498ff9d42a15a57f0fbd1ea5b38..aaedd23dab9b1b592cc799596df2f301c0917407 100644
--- a/tutorials/incompressible/simpleFoam/pitzDaily/system/controlDict
+++ b/tutorials/incompressible/simpleFoam/pitzDaily/system/controlDict
@@ -61,7 +61,7 @@ functions
         setFormat       vtk; //gnuplot; //xmgr; //raw; //jplot;
 
         // Velocity field to use for tracking.
-        U U;
+        UName U;
 
         // Tracked forwards (+U) or backwards (-U)
         trackForward    true;
diff --git a/tutorials/incompressible/simpleFoam/pitzDailyExptInlet/system/controlDict b/tutorials/incompressible/simpleFoam/pitzDailyExptInlet/system/controlDict
index 89dd2ff19ab190e6f0dafddc3c2b615d0bb5e2f0..c2b5d2e493f326b7c385fc98ee0957a1d3ea4427 100644
--- a/tutorials/incompressible/simpleFoam/pitzDailyExptInlet/system/controlDict
+++ b/tutorials/incompressible/simpleFoam/pitzDailyExptInlet/system/controlDict
@@ -61,7 +61,7 @@ functions
         setFormat       vtk; //gnuplot; //xmgr; //raw; //jplot;
 
         // Velocity field to use for tracking.
-        U U;
+        UName U;
 
         // Tracked forwards (+U) or backwards (-U)
         trackForward    true;