diff --git a/ProcessLib/RichardsFlow/RichardsFlowFEM.h b/ProcessLib/RichardsFlow/RichardsFlowFEM.h
index e28d31bd7000f1308be2509e48910762c57a4485..3c70ae641d6ef7428874c0e7f04f8bb2b3e1eda4 100644
--- a/ProcessLib/RichardsFlow/RichardsFlowFEM.h
+++ b/ProcessLib/RichardsFlow/RichardsFlowFEM.h
@@ -125,7 +125,7 @@ public:
 
             double const k_rel = interpolated_Kr.getValue(Sw);
             // \TODO Extend to pressure dependent density.
-            double const drhow_dp(0.0); 
+            double const drhow_dp(0.0);
 
             double const mass_mat_coeff =
                 storage * Sw + poro * Sw * drhow_dp - poro * dSwdPc;