diff --git a/applications/solvers/incompressible/simpleFoam/MRFSimpleFoam/UEqn.H b/applications/solvers/incompressible/simpleFoam/MRFSimpleFoam/UEqn.H
index 8c39a839f7..d595a64c8f 100644
--- a/applications/solvers/incompressible/simpleFoam/MRFSimpleFoam/UEqn.H
+++ b/applications/solvers/incompressible/simpleFoam/MRFSimpleFoam/UEqn.H
@@ -10,8 +10,8 @@
 
     mrfZones.addCoriolis(UEqn());
 
-    sources.constrain(UEqn());
-
     UEqn().relax();
 
+    sources.constrain(UEqn());
+
     solve(UEqn() == -fvc::grad(p));