1 files changed, 2 insertions, 0 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala b/src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala
index 43c8527f41..64a0727440 100644
--- a/src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala
+++ b/src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala
@@ -34,6 +34,8 @@ abstract class ConstantOptimization extends SubComponent {
   /** Create a new phase */
   override def newPhase(p: Phase) = new ConstantOptimizationPhase(p)
 
+  override val enabled: Boolean = settings.YconstOptimization
+
   /**
    * The constant optimization phase.
    */