diff --git a/src/Symfony/Bridge/Doctrine/Logger/DbalLogger.php b/src/Symfony/Bridge/Doctrine/Logger/DbalLogger.php
index 9908262f30..2d834d7d40 100644
--- a/src/Symfony/Bridge/Doctrine/Logger/DbalLogger.php
+++ b/src/Symfony/Bridge/Doctrine/Logger/DbalLogger.php
@@ -82,6 +82,12 @@ class DbalLogger implements SQLLogger
     private function normalizeParams(array $params)
     {
         foreach ($params as $index => $param) {
+            // normalize recursively
+            if (is_array($param)) {
+                $params[$index] = $this->normalizeParams($param);
+                continue;
+            }
+
             if (!is_string($params[$index])) {
                 continue;
             }