diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/config/profiler.xml b/src/Symfony/Bundle/WebProfilerBundle/Resources/config/profiler.xml
index 85634882bd416..f56b1f2f50d1a 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/config/profiler.xml
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/config/profiler.xml
@@ -56,7 +56,20 @@
             <argument>%debug.file_link_format%</argument>
             <argument type="service" id="request_stack" on-invalid="ignore" />
             <argument>%kernel.project_dir%</argument>
-            <argument>/_profiler/open?file=%%f&amp;line=%%l#line%%l</argument>
+            <argument type="service">
+                <service class="string">
+                    <factory function="implode" />
+                    <argument type="collection">
+                        <argument type="service">
+                            <service class="string">
+                                <factory service="router" method="generate" />
+                                <argument>_profiler_open_file</argument>
+                            </service>
+                        </argument>
+                        <argument>?file=%%f&amp;line=%%l#line%%l</argument>
+                    </argument>
+                </service>
+            </argument>
         </service>
     </services>
 </container>
diff --git a/src/Symfony/Component/Routing/Router.php b/src/Symfony/Component/Routing/Router.php
index 0de921853f875..ed56332ecd5f5 100644
--- a/src/Symfony/Component/Routing/Router.php
+++ b/src/Symfony/Component/Routing/Router.php
@@ -302,7 +302,9 @@ function (ConfigCacheInterface $cache) {
             }
         );
 
-        require_once $cache->getPath();
+        if (!class_exists($this->options['matcher_cache_class'], false)) {
+            require_once $cache->getPath();
+        }
 
         return $this->matcher = new $this->options['matcher_cache_class']($this->context);
     }
@@ -334,7 +336,9 @@ function (ConfigCacheInterface $cache) {
                 }
             );
 
-            require_once $cache->getPath();
+            if (!class_exists($this->options['generator_cache_class'], false)) {
+                require_once $cache->getPath();
+            }
 
             $this->generator = new $this->options['generator_cache_class']($this->context, $this->logger);
         }