diff --git a/YEqn.H b/YEqn.H
index 8a574ab..98fcefb 100644
--- a/YEqn.H
+++ b/YEqn.H
@@ -1,4 +1,4 @@
-Vc = dimensionedVector("zero", dimLength/dimTime, U[0]*0.0);
+Vc = dimensionedVector("zero", dimLength/dimTime, vector(Zero));
 
 phiC = dimensionedScalar("zero", dimDensity*dimVelocity*dimArea, 0.0);