Index: src/Common/SharpMap.Api/Layers/LayerExtensions.cs
===================================================================
diff -u -r18f9b18cab9da0c768badb3084415e993a5414ee -r5fc71a385897af92ccb092f2f969b5709afab85a
--- src/Common/SharpMap.Api/Layers/LayerExtensions.cs	(.../LayerExtensions.cs)	(revision 18f9b18cab9da0c768badb3084415e993a5414ee)
+++ src/Common/SharpMap.Api/Layers/LayerExtensions.cs	(.../LayerExtensions.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
@@ -10,7 +10,10 @@
             yield return layer;
 
             var groupLayer = layer as IGroupLayer;
-            if (groupLayer == null) yield break;
+            if (groupLayer == null)
+            {
+                yield break;
+            }
 
             foreach (var subLayer in groupLayer.Layers.SelectMany(GetLayersRecursive))
             {
@@ -26,7 +29,10 @@
             }
 
             var groupLayer = layer as IGroupLayer;
-            if (groupLayer == null) yield break;
+            if (groupLayer == null)
+            {
+                yield break;
+            }
 
             foreach (var typedLayer in groupLayer.Layers.SelectMany(GetLayersRecursive<T>))
             {