diff --git a/flask_cache/__init__.py b/flask_cache/__init__.py
index 85d90e3..5e66625 100644
--- a/flask_cache/__init__.py
+++ b/flask_cache/__init__.py
@@ -614,7 +614,7 @@ def add(self, b):
             3.23214234
             >>> adder2.add(3)
             3.60898509
-            >>> cache.delete_memoized(adder.add)
+            >>> cache.delete_memoized(adder1.add)
             >>> adder1.add(3)
             3.01348673
             >>> adder2.add(3)