diff --git a/src/wrapt/wrappers.py b/src/wrapt/wrappers.py
index 445d0b2..770bf8f 100644
--- a/src/wrapt/wrappers.py
+++ b/src/wrapt/wrappers.py
@@ -283,6 +283,10 @@ def __delattr__(self, name):
             object.__delattr__(self, name)
             delattr(self.__wrapped__, name)
 
+        elif name == "__annotations__":
+            object.__delattr__(self, name)
+            delattr(self.__wrapped__, name)
+
         elif hasattr(type(self), name):
             object.__delattr__(self, name)