diff --git a/Crypto Notepad/MainForm.cs b/Crypto Notepad/MainForm.cs
index 2481724..dfeb6df 100644
--- a/Crypto Notepad/MainForm.cs	
+++ b/Crypto Notepad/MainForm.cs	
@@ -661,6 +661,7 @@ private void MainWindow_Activated(object sender, EventArgs e)
                 ChangeKeyToolbarButton.Enabled = true;
                 LockToolbarButton.Enabled = true;
             }
+            LineNumbers_For_RichTextBox.Refresh();
         }
 
         private void MainWindow_FormClosing(object sender, FormClosingEventArgs e)