diff --git a/src/Monolog/Logger.php b/src/Monolog/Logger.php
index e4334b41..8841801e 100644
--- a/src/Monolog/Logger.php
+++ b/src/Monolog/Logger.php
@@ -309,7 +309,7 @@ class Logger implements LoggerInterface
         }
 
         reset($this->handlers);
-        while ($key !== key($this->handlers)) {
+        while ($handlerKey !== key($this->handlers)) {
             next($this->handlers);
         }