1 files changed, 2 insertions, 2 deletions
diff --git a/talogo.py b/talogo.py
index e2ebe43..87e89ba 100644
--- a/talogo.py
+++ b/talogo.py
@@ -555,14 +555,14 @@ class LogoCode:
     def start_eval(self, blklist):
         """ Step through the list. """
         if self.tw.running_sugar:
-            self.tw.activity.stop_button.set_icon("stopiton")
+            self.tw.activity.stop_turtle_button.set_icon("stopiton")
         elif self.tw.interactive_mode:
             self.tw.toolbar_shapes['stopiton'].set_layer(TAB_LAYER)
         self.running = True
         self.icall(self.evline, blklist)
         yield True
         if self.tw.running_sugar:
-            self.tw.activity.stop_button.set_icon("stopitoff")
+            self.tw.activity.stop_turtle_button.set_icon("stopitoff")
         elif self.tw.interactive_mode:
             self.tw.toolbar_shapes['stopiton'].hide()
         yield False