diff --git a/tutorials/incompressible/porousSimpleFoam/porousPlug/constant/porousZones b/tutorials/incompressible/porousSimpleFoam/porousPlug/constant/porousZones
index 4a15d0fa1..f18288bd1 100644
--- a/tutorials/incompressible/porousSimpleFoam/porousPlug/constant/porousZones
+++ b/tutorials/incompressible/porousSimpleFoam/porousPlug/constant/porousZones
@@ -25,15 +25,15 @@ FoamFile
             e2  (0 1 0);
         }
 
-        // Da =0.01 = K/H² = K/0.1^2 -> K=1e-4
-        // Da =0.001 = K/H² = K/0.1^2 -> K=1e-5
+        // Da =0.01 = K/H^2 = K/0.1^2 -> K=1e-4
+        // Da =0.001 = K/H^2 = K/0.1^2 -> K=1e-5
         // ce = 0.2439 -> sqrt(1/K) * ce (24.39 bzw 77.12)
         Darcy
         {
             d   d [0 -2 0 0 0 0 0] (1e5 1e5 1e5);
             f   f [0 -1 0 0 0 0 0] (77.12 77.12 77.12);
-            //            d   d [0 -2 0 0 0 0 0] (1e4 1e4 1e4);
-            //            f   f [0 -1 0 0 0 0 0] (24.39 24.39 24.39);
+            // d   d [0 -2 0 0 0 0 0] (1e4 1e4 1e4);
+            // f   f [0 -1 0 0 0 0 0] (24.39 24.39 24.39);
         }
     }
 )