diff --git a/terminatorlib/terminator.py b/terminatorlib/terminator.py
index 4da976f7..8b5ac0d9 100644
--- a/terminatorlib/terminator.py
+++ b/terminatorlib/terminator.py
@@ -338,7 +338,8 @@ class Terminator(Borg):
                 # For windows without a notebook ensure Terminal is visible and focused
                 if window_last_active_term_mapping[window]:
                     term = self.find_terminal_by_uuid(window_last_active_term_mapping[window].urn)
-                    term.ensure_visible_and_focussed()
+                    if term:
+                        term.ensure_visible_and_focussed()
 
         # Build list of new windows using prelayout list
         new_win_list = []