diff --git a/docs/tutorials/fundamentals/1_understanding_gui/step_03/step_03.md b/docs/tutorials/fundamentals/1_understanding_gui/step_03/step_03.md
index 398392747..358e02749 100644
--- a/docs/tutorials/fundamentals/1_understanding_gui/step_03/step_03.md
+++ b/docs/tutorials/fundamentals/1_understanding_gui/step_03/step_03.md
@@ -87,6 +87,7 @@ the callback function referenced in the `on_action` property.
 === "Python"
     ```python
     from taipy.gui import Gui, notify
+    import taipy.gui.builder as tgb
 
     text = "Original text"