From a8cb237f751836e8b1e33273d6da39a26e9b71dc Mon Sep 17 00:00:00 2001
From: Will Bainbridge <http://cfd.direct>
Date: Sat, 15 Oct 2022 16:13:46 +0100
Subject: [PATCH] tutorials: WatersKing: Fixed compilation error

---
 .../planarPoiseuille/validation/WatersKing/WatersKing.C          | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tutorials/modules/incompressibleFluid/planarPoiseuille/validation/WatersKing/WatersKing.C b/tutorials/modules/incompressibleFluid/planarPoiseuille/validation/WatersKing/WatersKing.C
index 732d1479de..24330ca946 100644
--- a/tutorials/modules/incompressibleFluid/planarPoiseuille/validation/WatersKing/WatersKing.C
+++ b/tutorials/modules/incompressibleFluid/planarPoiseuille/validation/WatersKing/WatersKing.C
@@ -45,6 +45,7 @@ Description
 #include "fvCFD.H"
 #include "viscosityModel.H"
 #include "incompressibleMomentumTransportModel.H"
+#include "OFstream.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //