diff --git a/test/implicit/1p2c/1p2coutflowproblem.hh b/test/implicit/1p2c/1p2coutflowproblem.hh
index ea0239884b87a64c5ef535b345f07e3940dfbcec..3e7074121cb2fb77f724b3197772be3a6eecd8c6 100644
--- a/test/implicit/1p2c/1p2coutflowproblem.hh
+++ b/test/implicit/1p2c/1p2coutflowproblem.hh
@@ -78,9 +78,12 @@ SET_TYPE_PROP(OnePTwoCOutflowProblem,
               SpatialParams,
               Dumux::OnePTwoCOutflowSpatialParams<TypeTag>);
 
-//Define whether mole(true) or mass (false) fractions are used
+// Define whether mole(true) or mass (false) fractions are used
 SET_BOOL_PROP(OnePTwoCOutflowProblem, UseMoles, false);
 
+// Enable velocity output
+SET_BOOL_PROP(OnePTwoCOutflowProblem, VtkAddVelocity, true);
+
 // Disable gravity
 SET_BOOL_PROP(OnePTwoCOutflowProblem, ProblemEnableGravity, false);
 }