diff --git a/src/Symfony/Component/Stopwatch/StopwatchEvent.php b/src/Symfony/Component/Stopwatch/StopwatchEvent.php
index 453437f011..81140421ed 100644
--- a/src/Symfony/Component/Stopwatch/StopwatchEvent.php
+++ b/src/Symfony/Component/Stopwatch/StopwatchEvent.php
@@ -234,4 +234,12 @@ class StopwatchEvent
 
         return round($time, 1);
     }
+
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        return sprintf('%s: %.2F MiB - %d ms', $this->getCategory(), $this->getMemory() / 1024 / 1024, $this->getDuration());
+    }
 }
diff --git a/src/Symfony/Component/Stopwatch/Tests/StopwatchEventTest.php b/src/Symfony/Component/Stopwatch/Tests/StopwatchEventTest.php
index 1881f8afeb..fb7183d5e4 100644
--- a/src/Symfony/Component/Stopwatch/Tests/StopwatchEventTest.php
+++ b/src/Symfony/Component/Stopwatch/Tests/StopwatchEventTest.php
@@ -156,4 +156,16 @@ class StopwatchEventTest extends \PHPUnit_Framework_TestCase
     {
         new StopwatchEvent("abc");
     }
+
+    public function testHumanRepresentation()
+    {
+        $event = new StopwatchEvent(microtime(true) * 1000);
+        $this->assertEquals('default: 0.00 MiB - 0 ms', (string) $event);
+        $event->start();
+        $event->stop();
+        $this->assertEquals(1, preg_match('/default: [0-9\.]+ MiB - [0-9]+ ms/', (string) $event));
+
+        $event = new StopwatchEvent(microtime(true) * 1000, 'foo');
+        $this->assertEquals('foo: 0.00 MiB - 0 ms', (string) $event);
+    }
 }