diff --git a/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Converters/ValueSourceToToolTipConverter.cs b/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Converters/ValueSourceToToolTipConverter.cs
index 2b70c134..2549d84d 100644
--- a/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Converters/ValueSourceToToolTipConverter.cs
+++ b/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Converters/ValueSourceToToolTipConverter.cs
@@ -4,7 +4,7 @@ using System.Windows.Data;
 
 namespace Microsoft.Windows.Controls.PropertyGrid.Converters
 {
-    class ValueSourceToToolTipConverter : IValueConverter
+    public class ValueSourceToToolTipConverter : IValueConverter
     {
         #region IValueConverter Members