diff --git a/src/postProcessing/functionObjects/field/streamLine/controlDict b/src/postProcessing/functionObjects/field/streamLine/controlDict
index 4d51dd82e1f758f5af36f68e927088bb87b14d90..63b6d1d1d2b34760363a1aacb7306768fd158db3 100644
--- a/src/postProcessing/functionObjects/field/streamLine/controlDict
+++ b/src/postProcessing/functionObjects/field/streamLine/controlDict
@@ -57,7 +57,7 @@ functions
         outputControl   outputTime;
         // outputInterval 10;
 
-        setFormat       vtk; //gnuplot; //xmgr; //raw; //jplot;
+        setFormat       vtk; //gnuplot, raw etc. See sampleDict.
 
         // Velocity field to use for tracking.
         UName U;