diff --git a/src/Composer/Command/ConfigCommand.php b/src/Composer/Command/ConfigCommand.php
index 72b7ad548..bf1b8377b 100644
--- a/src/Composer/Command/ConfigCommand.php
+++ b/src/Composer/Command/ConfigCommand.php
@@ -20,7 +20,6 @@ use Composer\Config;
 use Composer\Config\JsonConfigSource;
 use Composer\Factory;
 use Composer\Json\JsonFile;
-use Composer\Json\JsonManipulator;
 
 /**
  * @author Joshua Estes <Joshua.Estes@iostudio.com>
diff --git a/src/Composer/Config/ConfigSourceInterface.php b/src/Composer/Config/ConfigSourceInterface.php
index 08ac973a2..c67df4dd8 100644
--- a/src/Composer/Config/ConfigSourceInterface.php
+++ b/src/Composer/Config/ConfigSourceInterface.php
@@ -12,8 +12,6 @@
 
 namespace Composer\Config;
 
-use Composer\Json\JsonManipulator;
-
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
  */