From 5b7e82f90e23e348d11f9256fe673d066305fc31 Mon Sep 17 00:00:00 2001
From: Jui-Nan Yen <juinanyen@gmail.com>
Date: Thu, 28 Jul 2022 18:12:07 +0800
Subject: [PATCH] Fix the code snippet of the initializer modifier

---
 .../smart-contract/proxy-contract/audius.md     | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/vulnerabilities-cases/smart-contract/proxy-contract/audius.md b/vulnerabilities-cases/smart-contract/proxy-contract/audius.md
index adca600..16b037d 100644
--- a/vulnerabilities-cases/smart-contract/proxy-contract/audius.md
+++ b/vulnerabilities-cases/smart-contract/proxy-contract/audius.md
@@ -273,19 +273,18 @@ With `initializing == true`, the modifier always allow initialisation.
 
 ```
 modifier initializer() {
-    bool isTopLevelCall = !_initializing;
-    require(
-        (isTopLevelCall && _initialized < 1) || (!Address.isContract(address(this)) && _initialized == 1),
-        "Initializable: contract is already initialized"
-    );
-    _initialized = 1;
+    require(initializing || isConstructor() || !initialized, "Contract instance has already been initialized");
+
+    bool isTopLevelCall = !initializing;
     if (isTopLevelCall) {
-        _initializing = true;
+      initializing = true;
+      initialized = true;
     }
+
     _;
+
     if (isTopLevelCall) {
-        _initializing = false;
-        emit Initialized(1);
+      initializing = false;
     }
 }
 ```