diff --git a/src/dynamicMesh/polyTopoChange/polyTopoChange/polyTopoChange.C b/src/dynamicMesh/polyTopoChange/polyTopoChange/polyTopoChange.C
index c5ad1aa38e..0c7f9d570d 100644
--- a/src/dynamicMesh/polyTopoChange/polyTopoChange/polyTopoChange.C
+++ b/src/dynamicMesh/polyTopoChange/polyTopoChange/polyTopoChange.C
@@ -3311,7 +3311,7 @@ Foam::autoPtr<Foam::mapPolyMesh> Foam::polyTopoChange::makeMesh
 
     IOobject noReadIO(io);
     noReadIO.readOpt() = IOobject::NO_READ;
-    noReadIO.readOpt() = IOobject::AUTO_WRITE;
+    noReadIO.writeOpt() = IOobject::AUTO_WRITE;
     newMeshPtr.reset
     (
         new fvMesh