diff --git a/src/Symfony/Component/Form/Form.php b/src/Symfony/Component/Form/Form.php
index de229064d5..7a18dcb800 100644
--- a/src/Symfony/Component/Form/Form.php
+++ b/src/Symfony/Component/Form/Form.php
@@ -357,7 +357,7 @@ class Form implements \IteratorAggregate, FormInterface
         if (!FormUtil::isEmpty($viewData)) {
             $dataClass = $this->config->getDataClass();
 
-            $actualType = is_object($viewData) ? 'an instance of class '.get_class($viewData) : ' a(n) '.gettype($viewData);
+            $actualType = is_object($viewData) ? 'an instance of class '.get_class($viewData) : 'a(n) '.gettype($viewData);
 
             if (null === $dataClass && is_object($viewData) && !$viewData instanceof \ArrayAccess) {
                 $expectedType = 'scalar, array or an instance of \ArrayAccess';