diff --git a/src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php b/src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php
index 38c5af4734..65df5c5ea6 100644
--- a/src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php
+++ b/src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php
@@ -13,6 +13,7 @@ namespace Symfony\Bridge\Doctrine\DataCollector;
 
 use Doctrine\Common\Persistence\ManagerRegistry;
 use Doctrine\DBAL\Logging\DebugStack;
+use Doctrine\DBAL\Types\ConversionException;
 use Doctrine\DBAL\Types\Type;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -132,7 +133,14 @@ class DoctrineDataCollector extends DataCollector
                 }
                 if ($type instanceof Type) {
                     $query['types'][$j] = $type->getBindingType();
-                    $param = $type->convertToDatabaseValue($param, $this->registry->getConnection($connectionName)->getDatabasePlatform());
+                    try {
+                        $param = $type->convertToDatabaseValue($param, $this->registry->getConnection($connectionName)->getDatabasePlatform());
+                    } catch (\TypeError $e) {
+                        // Error thrown while processing params, query is not explainable.
+                        $query['explainable'] = false;
+                    } catch (ConversionException $e) {
+                        $query['explainable'] = false;
+                    }
                 }
             }
 
diff --git a/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php b/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
index 7557390bc6..f968bbd257 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
@@ -12,6 +12,7 @@
 namespace Symfony\Bridge\Doctrine\Tests\DataCollector;
 
 use Doctrine\DBAL\Platforms\MySqlPlatform;
+use Doctrine\DBAL\Version;
 use PHPUnit\Framework\TestCase;
 use Symfony\Bridge\Doctrine\DataCollector\DoctrineDataCollector;
 use Symfony\Component\HttpFoundation\Request;
@@ -120,7 +121,7 @@ class DoctrineDataCollectorTest extends TestCase
 
     public function paramProvider()
     {
-        return array(
+        $tests = array(
             array('some value', array(), 'some value', true),
             array(1, array(), 1, true),
             array(true, array(), true, true),
@@ -129,6 +130,13 @@ class DoctrineDataCollectorTest extends TestCase
             array(fopen(__FILE__, 'r'), array(), 'Resource(stream)', false),
             array(new \SplFileInfo(__FILE__), array(), 'Object(SplFileInfo)', false),
         );
+
+        if (version_compare(Version::VERSION, '2.6', '>=')) {
+            $tests[] = array('this is not a date', array('date'), 'this is not a date', false);
+            $tests[] = array(new \stdClass(), array('date'), 'Object(stdClass)', false);
+        }
+
+        return $tests;
     }
 
     private function createCollector($queries)