diff --git a/docs/source/examples.rst b/docs/source/examples.rst
index 16b3ee7869..6d39027bfc 100644
--- a/docs/source/examples.rst
+++ b/docs/source/examples.rst
@@ -94,7 +94,7 @@ Basic Concepts
             self.add(image, image.background_rectangle)
 
 .. manim:: BooleanOperations
-    :ref_classes: Union Intersection Exclusion
+    :ref_classes: Union Intersection Exclusion Difference
 
     class BooleanOperations(Scene):
         def construct(self):