diff --git a/getting_started/first_2d_game/05.the_main_game_scene.rst b/getting_started/first_2d_game/05.the_main_game_scene.rst
index be2e85f14..20e62b307 100644
--- a/getting_started/first_2d_game/05.the_main_game_scene.rst
+++ b/getting_started/first_2d_game/05.the_main_game_scene.rst
@@ -246,10 +246,10 @@ the other two timers. ``ScoreTimer`` will increment the score by 1.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_ScoreTimer_timeout():
+    func _on_score_timer_timeout():
         score += 1
 
-    func _on_StartTimer_timeout():
+    func _on_start_timer_timeout():
         $MobTimer.start()
         $ScoreTimer.start()
 
@@ -302,7 +302,7 @@ Note that a new instance must be added to the scene using ``add_child()``.
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_MobTimer_timeout():
+    func _on_mob_timer_timeout():
         # Create a new instance of the Mob scene.
         var mob = mob_scene.instantiate()
 
diff --git a/getting_started/first_2d_game/06.heads_up_display.rst b/getting_started/first_2d_game/06.heads_up_display.rst
index 217d8a05e..f04838dde 100644
--- a/getting_started/first_2d_game/06.heads_up_display.rst
+++ b/getting_started/first_2d_game/06.heads_up_display.rst
@@ -297,11 +297,11 @@ signal of ``StartButton``, and add the following code to the new functions:
 .. tabs::
  .. code-tab:: gdscript GDScript
 
-    func _on_StartButton_pressed():
+    func _on_start_button_pressed():
         $StartButton.hide()
         start_game.emit()
 
-    func _on_MessageTimer_timeout():
+    func _on_message_timer_timeout():
         $Message.hide()
 
  .. code-tab:: csharp