diff --git a/src/Symfony/Component/Config/Resource/DirectoryResource.php b/src/Symfony/Component/Config/Resource/DirectoryResource.php
index 6fe36793e1..e403725d6a 100644
--- a/src/Symfony/Component/Config/Resource/DirectoryResource.php
+++ b/src/Symfony/Component/Config/Resource/DirectoryResource.php
@@ -68,7 +68,7 @@ class DirectoryResource implements ResourceInterface, \Serializable
             return false;
         }
 
-        if ($timestamp <= filemtime($this->resource)) {
+        if ($timestamp < filemtime($this->resource)) {
             return false;
         }
 
@@ -85,7 +85,7 @@ class DirectoryResource implements ResourceInterface, \Serializable
             }
 
             // early return if a file's mtime exceeds the passed timestamp
-            if ($timestamp <= $file->getMTime()) {
+            if ($timestamp < $file->getMTime()) {
                 return false;
             }
         }
diff --git a/src/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php b/src/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php
index 0e64b4ce80..7117e4389b 100644
--- a/src/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php
+++ b/src/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php
@@ -96,8 +96,10 @@ class DirectoryResourceTest extends \PHPUnit_Framework_TestCase
     public function testIsFreshDeleteFile()
     {
         $resource = new DirectoryResource($this->directory);
+        $time = time();
+        sleep(1);
         unlink($this->directory.'/tmp.xml');
-        $this->assertFalse($resource->isFresh(time()), '->isFresh() returns false if an existing file is removed');
+        $this->assertFalse($resource->isFresh($time), '->isFresh() returns false if an existing file is removed');
     }
 
     public function testIsFreshDeleteDirectory()