diff --git a/csharp_mod/Formatter.cs b/csharp_mod/Formatter.cs
index a7a0532..890b79c 100644
--- a/csharp_mod/Formatter.cs
+++ b/csharp_mod/Formatter.cs
@@ -223,6 +223,11 @@ public class SlangFormatter : ICodeFormatter
 
         if (lines.Count() < 1)
         {
+            Ic10Editor.Selection = new TextRange
+            {
+                End = new TextPosition { Col = 0, Line = 0 },
+                Start = new TextPosition { Col = 0, Line = 0 },
+            };
             return;
         }
         // get the total range of the IC10 source for the selected Slang line