diff --git a/src/Symfony/Component/Routing/Loader/XmlFileLoader.php b/src/Symfony/Component/Routing/Loader/XmlFileLoader.php
index 7d2e12fe34..f56c656ebd 100644
--- a/src/Symfony/Component/Routing/Loader/XmlFileLoader.php
+++ b/src/Symfony/Component/Routing/Loader/XmlFileLoader.php
@@ -122,7 +122,7 @@ class XmlFileLoader extends FileLoader
                 throw new \InvalidArgumentException(sprintf('The <route> element in file "%s" cannot define both a "path" and a "pattern" attribute. Use only "path".', $path));
             }
 
-            trigger_error('The "pattern" is deprecated since version 2.2 and will be removed in 3.0. Use the "path" option in the route definition instead.', E_USER_DEPRECATED);
+            trigger_error(sprintf('The "pattern" in file "%s" is deprecated since version 2.2 and will be removed in 3.0. Use the "path" option in the route definition instead.', $path), E_USER_DEPRECATED);
 
             $node->setAttribute('path', $node->getAttribute('pattern'));
             $node->removeAttribute('pattern');
diff --git a/src/Symfony/Component/Routing/Loader/YamlFileLoader.php b/src/Symfony/Component/Routing/Loader/YamlFileLoader.php
index 63d3cd6439..e399ac1ddf 100644
--- a/src/Symfony/Component/Routing/Loader/YamlFileLoader.php
+++ b/src/Symfony/Component/Routing/Loader/YamlFileLoader.php
@@ -81,7 +81,7 @@ class YamlFileLoader extends FileLoader
                     throw new \InvalidArgumentException(sprintf('The file "%s" cannot define both a "path" and a "pattern" attribute. Use only "path".', $path));
                 }
 
-                trigger_error('The "pattern" is deprecated since version 2.2 and will be removed in 3.0. Use the "path" option in the route definition instead.', E_USER_DEPRECATED);
+                trigger_error(sprintf('The "pattern" in file "%s" is deprecated since version 2.2 and will be removed in 3.0. Use the "path" option in the route definition instead.', $path), E_USER_DEPRECATED);
 
                 $config['path'] = $config['pattern'];
                 unset($config['pattern']);