Index: src/DeltaShell/DeltaShell.Plugins.SharpMapGis.Gui/Commands/MapZoomHistoryCommand.cs
===================================================================
diff -u -r8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9 -r5fc71a385897af92ccb092f2f969b5709afab85a
--- src/DeltaShell/DeltaShell.Plugins.SharpMapGis.Gui/Commands/MapZoomHistoryCommand.cs	(.../MapZoomHistoryCommand.cs)	(revision 8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9)
+++ src/DeltaShell/DeltaShell.Plugins.SharpMapGis.Gui/Commands/MapZoomHistoryCommand.cs	(.../MapZoomHistoryCommand.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
@@ -2,20 +2,23 @@
 
 namespace DeltaShell.Plugins.SharpMapGis.Gui.Commands
 {
-    public abstract class MapZoomHistoryCommand: MapViewCommand
+    public abstract class MapZoomHistoryCommand : MapViewCommand
     {
-        public ZoomHistoryTool ZoomHistoryToolMapTool
+        public override bool Checked
         {
             get
             {
-                return MapView.MapControl.GetToolByType<ZoomHistoryTool>();
+                return false;
             }
+            set {}
         }
 
-        public override bool Checked
+        public ZoomHistoryTool ZoomHistoryToolMapTool
         {
-            get { return false; }
-            set { }
+            get
+            {
+                return MapView.MapControl.GetToolByType<ZoomHistoryTool>();
+            }
         }
     }
 }
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