diff --git a/src/MainForm.cs b/src/MainForm.cs
index f8421a1..90ce6e5 100644
--- a/src/MainForm.cs
+++ b/src/MainForm.cs
@@ -63,7 +63,8 @@ public partial class MainForm : Form
             string fullPath = Path.GetFullPath( fname ) ;
             if ( fullPath.StartsWith( dataDir ) ) {
                 key = fname.Substring( dataDir.Length ) ;
-                if ( key.StartsWith( "/" ) || key.StartsWith( "\\" ) )
+                key = key.Replace( "\\", "/" ) ;
+                if ( key.StartsWith( "/" ) )
                     key = key.Substring( 1 ) ;
             } else {
                 // NOTE: I don't think we should ever get here :-/ If we do, the user will have to manage