diff --git a/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C b/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C
index 6d7b9fe688..aec7160e8e 100644
--- a/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C
+++ b/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -496,10 +496,16 @@ void getInterfaceSizes
             }
             interfaceSizes[nInterfaces] = infoIter();
 
-            Map<label> zoneAndInterface;
-            zoneAndInterface.insert(zoneID, nInterfaces);
-            regionsToInterface.insert(e, zoneAndInterface);
-
+            if (regionsToInterface.found(e))
+            {
+                regionsToInterface[e].insert(zoneID, nInterfaces);
+            }
+            else
+            {
+                Map<label> zoneAndInterface;
+                zoneAndInterface.insert(zoneID, nInterfaces);
+                regionsToInterface.insert(e, zoneAndInterface);
+            }
             nInterfaces++;
         }
     }