diff --git a/applications/utilities/mesh/generation/cvMesh/cvMesh.C b/applications/utilities/mesh/generation/cvMesh/cvMesh.C
index 351e52c7ac..c9d21f86a0 100644
--- a/applications/utilities/mesh/generation/cvMesh/cvMesh.C
+++ b/applications/utilities/mesh/generation/cvMesh/cvMesh.C
@@ -49,7 +49,7 @@ int main(int argc, char *argv[])
             "cvMeshDict",
             runTime.system(),
             runTime,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     );