diff --git a/manim/mobject/mobject.py b/manim/mobject/mobject.py
index 6ad3ece777..e0e6ae7a51 100644
--- a/manim/mobject/mobject.py
+++ b/manim/mobject/mobject.py
@@ -1002,13 +1002,13 @@ def add_updater(
 
             class NextToUpdater(Scene):
                 def construct(self):
-                    def dot_position(mobject):
+                    def update_label(mobject):
                         mobject.set_value(dot.get_center()[0])
                         mobject.next_to(dot)
 
                     dot = Dot(RIGHT*3)
                     label = DecimalNumber()
-                    label.add_updater(dot_position)
+                    label.add_updater(update_label)
                     self.add(dot, label)
 
                     self.play(Rotating(dot, about_point=ORIGIN, angle=TAU, run_time=TAU, rate_func=linear))