diff --git a/tutorials/mesh/parallel/cavity/system/decomposeParDict b/tutorials/mesh/parallel/cavity/system/decomposeParDict
index 978d27ee1d..7318ec1d80 100644
--- a/tutorials/mesh/parallel/cavity/system/decomposeParDict
+++ b/tutorials/mesh/parallel/cavity/system/decomposeParDict
@@ -107,6 +107,7 @@ structuredCoeffs
     method      scotch;
 }
 
+/*
 constraints
 {
     //- Keep owner and neighbour on same processor for faces in zones:
@@ -148,7 +149,7 @@ constraints
         enabled false;
     }
 }
-
+*/
 
 //// Is the case distributed? Note: command-line argument -roots takes
 //// precedence