diff --git a/CHANGELOG.mdown b/CHANGELOG.mdown
index 2377cb9c7..df8b5fad3 100644
--- a/CHANGELOG.mdown
+++ b/CHANGELOG.mdown
@@ -1,6 +1,7 @@
-* 1.3.1 (2013--)
+* 1.3.1 (2013-01-11)
 
   * Fixed LogstashFormatter to be usable with stream handlers
+  * Fixed GelfMessageFormatter levels on Windows
 
 * 1.3.0 (2013-01-08)
 
diff --git a/tests/Monolog/Formatter/GelfMessageFormatterTest.php b/tests/Monolog/Formatter/GelfMessageFormatterTest.php
index f82113cbf..a1db166af 100644
--- a/tests/Monolog/Formatter/GelfMessageFormatterTest.php
+++ b/tests/Monolog/Formatter/GelfMessageFormatterTest.php
@@ -47,7 +47,7 @@ public function testDefaultFormatter()
         $this->assertEquals('meh', $message->getFacility());
         $this->assertEquals(null, $message->getLine());
         $this->assertEquals(null, $message->getFile());
-        $this->assertEquals(LOG_ERR, $message->getLevel());
+        $this->assertEquals(3, $message->getLevel());
         $this->assertNotEmpty($message->getHost());
 
         $formatter = new GelfMessageFormatter('mysystem');
diff --git a/tests/Monolog/Handler/GelfHandlerTest.php b/tests/Monolog/Handler/GelfHandlerTest.php
index c4fe5ad78..8e9b9f8ad 100644
--- a/tests/Monolog/Handler/GelfHandlerTest.php
+++ b/tests/Monolog/Handler/GelfHandlerTest.php
@@ -55,7 +55,7 @@ public function testDebug()
         $record = $this->getRecord(Logger::DEBUG, "A test debug message");
         $handler->handle($record);
 
-        $this->assertEquals(LOG_DEBUG, $messagePublisher->lastMessage->getLevel());
+        $this->assertEquals(7, $messagePublisher->lastMessage->getLevel());
         $this->assertEquals('test', $messagePublisher->lastMessage->getFacility());
         $this->assertEquals($record['message'], $messagePublisher->lastMessage->getShortMessage());
         $this->assertEquals(null, $messagePublisher->lastMessage->getFullMessage());
@@ -69,7 +69,7 @@ public function testWarning()
         $record = $this->getRecord(Logger::WARNING, "A test warning message");
         $handler->handle($record);
 
-        $this->assertEquals(LOG_WARNING, $messagePublisher->lastMessage->getLevel());
+        $this->assertEquals(4, $messagePublisher->lastMessage->getLevel());
         $this->assertEquals('test', $messagePublisher->lastMessage->getFacility());
         $this->assertEquals($record['message'], $messagePublisher->lastMessage->getShortMessage());
         $this->assertEquals(null, $messagePublisher->lastMessage->getFullMessage());