diff --git a/stdlib/2.7/__builtin__.pyi b/stdlib/2.7/__builtin__.pyi
index 4cd7add9b..507cde958 100644
--- a/stdlib/2.7/__builtin__.pyi
+++ b/stdlib/2.7/__builtin__.pyi
@@ -655,7 +655,7 @@ class property:
     def deleter(self, fdel: Callable[[Any], None]) -> property: ...
     def __get__(self, obj: Any, type: type=None) -> Any: ...
     def __set__(self, obj: Any, value: Any) -> None: ...
-    def __del__(self, obj: Any) -> None: ...
+    def __delete__(self, obj: Any) -> None: ...
 
 long = int
 bytes = str
diff --git a/stdlib/3/builtins.pyi b/stdlib/3/builtins.pyi
index c1477676e..e0c41892b 100644
--- a/stdlib/3/builtins.pyi
+++ b/stdlib/3/builtins.pyi
@@ -630,7 +630,7 @@ class property:
     def deleter(self, fdel: Callable[[Any], None]) -> property: ...
     def __get__(self, obj: Any, type: type=None) -> Any: ...
     def __set__(self, obj: Any, value: Any) -> None: ...
-    def __del__(self, obj: Any) -> None: ...
+    def __delete__(self, obj: Any) -> None: ...
 
 NotImplemented = ...  # type: Any