diff --git a/src/Symfony/Component/Finder/Adapter/BsdFindAdapter.php b/src/Symfony/Component/Finder/Adapter/BsdFindAdapter.php
index d11ea3e25d80a..c49a07c8f6df7 100644
--- a/src/Symfony/Component/Finder/Adapter/BsdFindAdapter.php
+++ b/src/Symfony/Component/Finder/Adapter/BsdFindAdapter.php
@@ -92,10 +92,12 @@ protected function buildContentFiltering(Command $command, array $contains, $not
             // todo: avoid forking process for each $pattern by using multiple -e options
             $command
                 ->add('| grep -v \'^$\'')
-                ->add('| xargs grep -I')
+                ->add('| xargs -I{} grep -I')
                 ->add($expr->isCaseSensitive() ? null : '-i')
                 ->add($not ? '-L' : '-l')
-                ->add('-Ee')->arg($expr->renderPattern());
+                ->add('-Ee')->arg($expr->renderPattern())
+                ->add('{}')
+            ;
         }
     }
 }
diff --git a/src/Symfony/Component/Finder/Adapter/GnuFindAdapter.php b/src/Symfony/Component/Finder/Adapter/GnuFindAdapter.php
index a235742c01e6a..b332b97038689 100644
--- a/src/Symfony/Component/Finder/Adapter/GnuFindAdapter.php
+++ b/src/Symfony/Component/Finder/Adapter/GnuFindAdapter.php
@@ -93,10 +93,12 @@ protected function buildContentFiltering(Command $command, array $contains, $not
 
             // todo: avoid forking process for each $pattern by using multiple -e options
             $command
-                ->add('| xargs -r grep -I')
+                ->add('| xargs -I{} -r grep -I')
                 ->add($expr->isCaseSensitive() ? null : '-i')
                 ->add($not ? '-L' : '-l')
-                ->add('-Ee')->arg($expr->renderPattern());
+                ->add('-Ee')->arg($expr->renderPattern())
+                ->add('{}')
+            ;
         }
     }
 }
diff --git a/src/Symfony/Component/Finder/Tests/FinderTest.php b/src/Symfony/Component/Finder/Tests/FinderTest.php
index 33750fc27613d..b9198178f0558 100644
--- a/src/Symfony/Component/Finder/Tests/FinderTest.php
+++ b/src/Symfony/Component/Finder/Tests/FinderTest.php
@@ -735,6 +735,11 @@ public function getTestPathData()
                     'copy'.DIRECTORY_SEPARATOR.'A'.DIRECTORY_SEPARATOR.'B'.DIRECTORY_SEPARATOR.'C'.DIRECTORY_SEPARATOR.'abc.dat.copy',
                 )
             ),
+            array('/^with space\//', 'foobar',
+                array(
+                    'with space'.DIRECTORY_SEPARATOR.'foo.txt',
+                )
+            ),
         );
 
         return $this->buildTestData($tests);
diff --git a/src/Symfony/Component/Finder/Tests/Fixtures/with space/foo.txt b/src/Symfony/Component/Finder/Tests/Fixtures/with space/foo.txt
new file mode 100644
index 0000000000000..e69de29bb2d1d