From a0fd30545b9cba332aa00ff919ccf933e36afa1b Mon Sep 17 00:00:00 2001
From: Charles Cooper <cooper.charles.m@gmail.com>
Date: Fri, 1 Sep 2023 16:18:39 -0400
Subject: [PATCH] fix erc721 interface

---
 vyper/builtins/interfaces/ERC721.py | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/vyper/builtins/interfaces/ERC721.py b/vyper/builtins/interfaces/ERC721.py
index 29ef5f4c26..8dea4e4976 100644
--- a/vyper/builtins/interfaces/ERC721.py
+++ b/vyper/builtins/interfaces/ERC721.py
@@ -2,18 +2,18 @@
 # Events
 
 event Transfer:
-    _from: address
-    _to: address
-    _tokenId: uint256
+    _from: indexed(address)
+    _to: indexed(address)
+    _tokenId: indexed(uint256)
 
 event Approval:
-    _owner: address
-    _approved: address
-    _tokenId: uint256
+    _owner: indexed(address)
+    _approved: indexed(address)
+    _tokenId: indexed(uint256)
 
 event ApprovalForAll:
-    _owner: address
-    _operator: address
+    _owner: indexed(address)
+    _operator: indexed(address)
     _approved: bool
 
 # Functions