diff --git a/src/Composer/Package/Comparer/Comparer.php b/src/Composer/Package/Comparer/Comparer.php
index ed1931e82..c0ab98d9c 100644
--- a/src/Composer/Package/Comparer/Comparer.php
+++ b/src/Composer/Package/Comparer/Comparer.php
@@ -70,6 +70,7 @@ class Comparer
         if (!is_array($source)) {
             return;
         }
+        chdir($currentDirectory);
         chdir($this->update);
         $destination = $this->doTree('.', $destination);
         if (!is_array($destination)) {