diff --git a/tutorials/mesh/snappyHexMesh/iglooWithFridges/system/snappyHexMeshDict b/tutorials/mesh/snappyHexMesh/iglooWithFridges/system/snappyHexMeshDict
index 0c11dad74f..30da453331 100644
--- a/tutorials/mesh/snappyHexMesh/iglooWithFridges/system/snappyHexMeshDict
+++ b/tutorials/mesh/snappyHexMesh/iglooWithFridges/system/snappyHexMeshDict
@@ -45,6 +45,8 @@ geometry
     fridgeFreezer
     {
         type searchableSurfaceCollection;
+
+        mergeSubRegions true;
     
         freezer
         {
@@ -75,6 +77,8 @@ geometry
     {
         type searchableSurfaceCollection;
     
+        mergeSubRegions true;
+    
         seal
         {
             surface fridgeFreezer;