diff --git a/diff_edit/editor.py b/diff_edit/editor.py
index 9be0b0e..15e6cc1 100755
--- a/diff_edit/editor.py
+++ b/diff_edit/editor.py
@@ -200,6 +200,7 @@ class Editor:
         self.last_height = 40
         self.is_editing = True
         self.theme_index = 0
+        self.previous_term_code = None
 
     @property
     def cursor_x(self):