diff --git a/SampleApps/WpfApplication/App.config b/SampleApps/WpfApplication/App.config
index aed15bcc..25b1eb77 100644
--- a/SampleApps/WpfApplication/App.config
+++ b/SampleApps/WpfApplication/App.config
@@ -8,7 +8,7 @@
     <applicationSettings>
         <WpfApplication.Properties.Settings>
             <setting name="TileCache" serializeAs="String">
-                <value>ImageFileCache</value>
+                <value />
             </setting>
         </WpfApplication.Properties.Settings>
     </applicationSettings>
diff --git a/SampleApps/WpfApplication/Properties/Settings.Designer.cs b/SampleApps/WpfApplication/Properties/Settings.Designer.cs
index c601f6e5..5fcde2a0 100644
--- a/SampleApps/WpfApplication/Properties/Settings.Designer.cs
+++ b/SampleApps/WpfApplication/Properties/Settings.Designer.cs
@@ -1,7 +1,7 @@
 //------------------------------------------------------------------------------
 // <auto-generated>
 //     This code was generated by a tool.
-//     Runtime Version:4.0.30319.18408
+//     Runtime Version:4.0.30319.34003
 //
 //     Changes to this file may cause incorrect behavior and will be lost if
 //     the code is regenerated.
@@ -25,7 +25,7 @@ namespace WpfApplication.Properties {
         
         [global::System.Configuration.ApplicationScopedSettingAttribute()]
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-        [global::System.Configuration.DefaultSettingValueAttribute("ImageFileCache")]
+        [global::System.Configuration.DefaultSettingValueAttribute("")]
         public string TileCache {
             get {
                 return ((string)(this["TileCache"]));
diff --git a/SampleApps/WpfApplication/Properties/Settings.settings b/SampleApps/WpfApplication/Properties/Settings.settings
index d4515930..0dab5ee7 100644
--- a/SampleApps/WpfApplication/Properties/Settings.settings
+++ b/SampleApps/WpfApplication/Properties/Settings.settings
@@ -3,7 +3,7 @@
   <Profiles />
   <Settings>
     <Setting Name="TileCache" Type="System.String" Scope="Application">
-      <Value Profile="(Default)">ImageFileCache</Value>
+      <Value Profile="(Default)" />
     </Setting>
   </Settings>
 </SettingsFile>
\ No newline at end of file