diff --git a/src/OpenFOAM/meshes/zones/cellZones/cellZone.H b/src/OpenFOAM/meshes/zones/cellZones/cellZone.H
index b483b38bef..7405edaac4 100644
--- a/src/OpenFOAM/meshes/zones/cellZones/cellZone.H
+++ b/src/OpenFOAM/meshes/zones/cellZones/cellZone.H
@@ -60,6 +60,8 @@ class cellZone
 
 public:
 
+    typedef cellZoneList ZonesType;
+
     // Static Data Members
 
         //- The name associated with the zone-labels dictionary entry