diff --git a/polaris/tasks/ocean/sphere_transport/forward.yaml b/polaris/tasks/ocean/sphere_transport/forward.yaml
index 400d143eb3..7ef8c50369 100644
--- a/polaris/tasks/ocean/sphere_transport/forward.yaml
+++ b/polaris/tasks/ocean/sphere_transport/forward.yaml
@@ -62,7 +62,7 @@ mpas-ocean:
 
 Omega:
   Tendencies:
-    ThicknessFluxTendencyEnable : false
+    ThicknessFluxTendencyEnable : true
     PVTendencyEnable : false
     KETendencyEnable : false
     SSHTendencyEnable : false