diff --git a/src/Monolog/Handler/RavenHandler.php b/src/Monolog/Handler/RavenHandler.php
index c37dbf31..5a29e496 100644
--- a/src/Monolog/Handler/RavenHandler.php
+++ b/src/Monolog/Handler/RavenHandler.php
@@ -145,6 +145,14 @@ class RavenHandler extends AbstractProcessingHandler
         } else {
             $options['logger'] = $record['channel'];
         }
+        if (!empty($record['extra']['checksum'])) {
+            $options['checksum'] = $record['extra']['checksum'];
+            unset($record['extra']['checksum']);
+        }
+        if (!empty($record['context']['checksum'])) {
+            $options['checksum'] = $record['context']['checksum'];
+            unset($record['context']['checksum']);
+        }
         if (!empty($record['context'])) {
             $options['extra']['context'] = $record['context'];
             if (!empty($record['context']['user'])) {
diff --git a/tests/Monolog/Handler/RavenHandlerTest.php b/tests/Monolog/Handler/RavenHandlerTest.php
index 9a9d1006..815748d7 100644
--- a/tests/Monolog/Handler/RavenHandlerTest.php
+++ b/tests/Monolog/Handler/RavenHandlerTest.php
@@ -85,6 +85,18 @@ class RavenHandlerTest extends TestCase
         $this->assertEquals($tags, $ravenClient->lastData['tags']);
     }
 
+    public function testChecksum()
+    {
+        $ravenClient = $this->getRavenClient();
+        $handler = $this->getHandler($ravenClient);
+
+        $checksum = '098f6bcd4621d373cade4e832627b4f6';
+        $record = $this->getRecord(Logger::INFO, 'test', array('checksum' => $checksum));
+        $handler->handle($record);
+
+        $this->assertEquals($checksum, $ravenClient->lastData['checksum']);
+    }
+
     public function testUserContext()
     {
         $ravenClient = $this->getRavenClient();