diff --git a/mirgecom/multiphysics/thermally_coupled_fluid_wall.py b/mirgecom/multiphysics/thermally_coupled_fluid_wall.py
index 000795b77..f8e411387 100644
--- a/mirgecom/multiphysics/thermally_coupled_fluid_wall.py
+++ b/mirgecom/multiphysics/thermally_coupled_fluid_wall.py
@@ -1556,7 +1556,6 @@ def coupled_ns_heat_operator(
             quadrature_tag=quadrature_tag)
 
     # Compute the subdomain NS/diffusion operators using the augmented boundaries
-
     ns_result = ns_operator(
         dcoll, gas_model, fluid_state, fluid_all_boundaries,
         time=time, quadrature_tag=quadrature_tag, dd=fluid_dd,