diff --git a/src/Symfony/Component/Routing/Loader/ObjectRouteLoader.php b/src/Symfony/Component/Routing/Loader/ObjectRouteLoader.php
index 3920fc4bef..65633ca075 100644
--- a/src/Symfony/Component/Routing/Loader/ObjectRouteLoader.php
+++ b/src/Symfony/Component/Routing/Loader/ObjectRouteLoader.php
@@ -67,7 +67,7 @@ abstract class ObjectRouteLoader extends Loader
         if (!$routeCollection instanceof RouteCollection) {
             $type = \is_object($routeCollection) ? \get_class($routeCollection) : \gettype($routeCollection);
 
-            throw new \LogicException(sprintf('The "%s"::%s method must return a RouteCollection: "%s" returned.', \get_class($loaderObject), $method, $type));
+            throw new \LogicException(sprintf('The "%s::%s()" method must return a RouteCollection: "%s" returned.', \get_class($loaderObject), $method, $type));
         }
 
         // make the service file tracked so that if it changes, the cache rebuilds
diff --git a/src/Symfony/Component/Routing/Loader/XmlFileLoader.php b/src/Symfony/Component/Routing/Loader/XmlFileLoader.php
index 29dfdb1665..a9a9d09e08 100644
--- a/src/Symfony/Component/Routing/Loader/XmlFileLoader.php
+++ b/src/Symfony/Component/Routing/Loader/XmlFileLoader.php
@@ -240,9 +240,9 @@ class XmlFileLoader extends FileLoader
 
         if ($controller = $node->getAttribute('controller')) {
             if (isset($defaults['_controller'])) {
-                $name = $node->hasAttribute('id') ? sprintf('"%s"', $node->getAttribute('id')) : sprintf('the "%s" tag', $node->tagName);
+                $name = $node->hasAttribute('id') ? sprintf('"%s".', $node->getAttribute('id')) : sprintf('the "%s" tag.', $node->tagName);
 
-                throw new \InvalidArgumentException(sprintf('The routing file "%s" must not specify both the "controller" attribute and the defaults key "_controller" for %s.', $path, $name));
+                throw new \InvalidArgumentException(sprintf('The routing file "%s" must not specify both the "controller" attribute and the defaults key "_controller" for ', $path).$name);
             }
 
             $defaults['_controller'] = $controller;