diff --git a/src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C b/src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C
index 2845c57c4b..95ae8ed877 100644
--- a/src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C
+++ b/src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C
@@ -549,6 +549,10 @@ Foam::label Foam::ptscotchDecomp::decompose
         }
     }
 
+
+    // Make repeatable
+    SCOTCH_randomReset();
+
     // Strategy
     // ~~~~~~~~
 
diff --git a/src/parallel/decompose/scotchDecomp/scotchDecomp.C b/src/parallel/decompose/scotchDecomp/scotchDecomp.C
index f0c51a31d0..b1bf4772cd 100644
--- a/src/parallel/decompose/scotchDecomp/scotchDecomp.C
+++ b/src/parallel/decompose/scotchDecomp/scotchDecomp.C
@@ -236,6 +236,9 @@ Foam::label Foam::scotchDecomp::decomposeSerial
         }
     }
 
+    // Make repeatable
+    SCOTCH_randomReset();
+
     // Strategy
     // ~~~~~~~~