diff --git a/src/waves/waveSuperposition/waveSuperposition.C b/src/waves/waveSuperposition/waveSuperposition.C
index 2e3fe8e..b096c1f 100644
--- a/src/waves/waveSuperposition/waveSuperposition.C
+++ b/src/waves/waveSuperposition/waveSuperposition.C
@@ -198,7 +198,7 @@ Foam::waveSuperposition::waveSuperposition(const waveSuperposition& waves)
     ramp_(waves.ramp_, false),
     scale_(waves.scale_, false),
     crossScale_(waves.crossScale_, false),
-    heightAboveWave_(false)
+    heightAboveWave_(waves.heightAboveWave_)
 {}