diff --git a/src/Symfony/Bundle/FrameworkBundle/Templating/TemplateFilenameParser.php b/src/Symfony/Bundle/FrameworkBundle/Templating/TemplateFilenameParser.php
index bf41ca81f1..a4a5e92cf3 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Templating/TemplateFilenameParser.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Templating/TemplateFilenameParser.php
@@ -12,6 +12,7 @@
 namespace Symfony\Bundle\FrameworkBundle\Templating;
 
 use Symfony\Component\Templating\TemplateNameParserInterface;
+use Symfony\Component\Templating\TemplateReferenceInterface;
 
 /**
  * TemplateFilenameParser converts template filenames to
diff --git a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php
index d95082b69e..84e549b47e 100644
--- a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php
+++ b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php
@@ -682,7 +682,7 @@ class SecurityExtension extends Extension
     {
         if (null === $this->expressionLanguage) {
             if (!class_exists('Symfony\Component\ExpressionLanguage\ExpressionLanguage')) {
-                throw new RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
+                throw new \RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
             }
             $this->expressionLanguage = new ExpressionLanguage();
         }
diff --git a/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php b/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
index a412fa7806..84cc353515 100644
--- a/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
+++ b/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
@@ -388,7 +388,7 @@ EOF;
     {
         if (null === $this->expressionLanguage) {
             if (!class_exists('Symfony\Component\ExpressionLanguage\ExpressionLanguage')) {
-                throw new RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
+                throw new \RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
             }
             $this->expressionLanguage = new ExpressionLanguage();
         }