diff --git a/etc/controlDict b/etc/controlDict
index 32663f0873..df554111e0 100644
--- a/etc/controlDict
+++ b/etc/controlDict
@@ -593,6 +593,7 @@ DebugSwitches
     muSgsSpalartAllmarasWallFunction 0;
     multiDirRefinement  0;
     multiHoleInjector   0;
+    multiLevel          1;
     multivariateSelection 0;
     mutRoughWallFunction 0;
     mutSpalartAllmarasStandardRoughWallFunction  0;