diff --git a/src/Composer/Command/StatusCommand.php b/src/Composer/Command/StatusCommand.php
index 5a07cee8b..4eaddda5c 100644
--- a/src/Composer/Command/StatusCommand.php
+++ b/src/Composer/Command/StatusCommand.php
@@ -59,7 +59,7 @@ EOT
             if ($downloader instanceof ChangeReportInterface) {
                 $targetDir = $im->getInstallPath($package);
 
-                if ($changes = $downloader->getLocalChanges($targetDir, $package)) {
+                if ($changes = $downloader->getLocalChanges($package, $targetDir)) {
                     $errors[$targetDir] = $changes;
                 }
             }
diff --git a/src/Composer/Downloader/ChangeReportInterface.php b/src/Composer/Downloader/ChangeReportInterface.php
index 1d770ec8e..e60615431 100644
--- a/src/Composer/Downloader/ChangeReportInterface.php
+++ b/src/Composer/Downloader/ChangeReportInterface.php
@@ -24,9 +24,9 @@ interface ChangeReportInterface
     /**
      * Checks for changes to the local copy
      *
-     * @param string $path package directory
      * @param PackageInterface $package package instance
+     * @param string $path package directory
      * @return string|null changes or null
      */
-    public function getLocalChanges($path, PackageInterface $package);
+    public function getLocalChanges(PackageInterface $package, $path);
 }
diff --git a/src/Composer/Downloader/GitDownloader.php b/src/Composer/Downloader/GitDownloader.php
index e25da3ee6..f320cf931 100644
--- a/src/Composer/Downloader/GitDownloader.php
+++ b/src/Composer/Downloader/GitDownloader.php
@@ -78,7 +78,7 @@ class GitDownloader extends VcsDownloader
     /**
      * {@inheritDoc}
      */
-    public function getLocalChanges($path, PackageInterface $package)
+    public function getLocalChanges(PackageInterface $package, $path)
     {
         $this->cleanEnv();
         $path = $this->normalizePath($path);
@@ -97,11 +97,11 @@ class GitDownloader extends VcsDownloader
     /**
      * {@inheritDoc}
      */
-    protected function cleanChanges($path, $update, $package)
+    protected function cleanChanges(PackageInterface $package, $path, $update)
     {
         $this->cleanEnv();
         $path = $this->normalizePath($path);
-        if (!$changes = $this->getLocalChanges($path, $package)) {
+        if (!$changes = $this->getLocalChanges($package, $path)) {
             return;
         }
 
@@ -112,13 +112,13 @@ class GitDownloader extends VcsDownloader
             }
             if ('stash' === $discardChanges) {
                 if (!$update) {
-                    return parent::cleanChanges($path, $update, $package);
+                    return parent::cleanChanges($package, $path, $update);
                 }
 
                 return $this->stashChanges($path);
             }
 
-            return parent::cleanChanges($path, $update, $package);
+            return parent::cleanChanges($package, $path, $update);
         }
 
         $changes = array_map(function ($elem) {
diff --git a/src/Composer/Downloader/HgDownloader.php b/src/Composer/Downloader/HgDownloader.php
index 011b401a7..ed3fd74d9 100644
--- a/src/Composer/Downloader/HgDownloader.php
+++ b/src/Composer/Downloader/HgDownloader.php
@@ -59,7 +59,7 @@ class HgDownloader extends VcsDownloader
     /**
      * {@inheritDoc}
      */
-    public function getLocalChanges($path, PackageInterface $package)
+    public function getLocalChanges(PackageInterface $package, $path)
     {
         if (!is_dir($path.'/.hg')) {
             return;
diff --git a/src/Composer/Downloader/SvnDownloader.php b/src/Composer/Downloader/SvnDownloader.php
index 4fca4949a..ec789c92a 100644
--- a/src/Composer/Downloader/SvnDownloader.php
+++ b/src/Composer/Downloader/SvnDownloader.php
@@ -52,7 +52,7 @@ class SvnDownloader extends VcsDownloader
     /**
      * {@inheritDoc}
      */
-    public function getLocalChanges($path, PackageInterface $package)
+    public function getLocalChanges(PackageInterface $package, $path)
     {
         if (!is_dir($path.'/.svn')) {
             return;
@@ -90,9 +90,9 @@ class SvnDownloader extends VcsDownloader
     /**
      * {@inheritDoc}
      */
-    protected function cleanChanges($path, $update, $package)
+    protected function cleanChanges(PackageInterface $package, $path, $update)
     {
-        if (!$changes = $this->getLocalChanges($path, $package)) {
+        if (!$changes = $this->getLocalChanges($package, $path)) {
             return;
         }
 
@@ -101,7 +101,7 @@ class SvnDownloader extends VcsDownloader
                 return $this->discardChanges($path);
             }
 
-            return parent::cleanChanges($path, $update, $package);
+            return parent::cleanChanges($package, $path, $update);
         }
 
         $changes = array_map(function ($elem) {
diff --git a/src/Composer/Downloader/VcsDownloader.php b/src/Composer/Downloader/VcsDownloader.php
index 7adfbb65d..d3253d956 100644
--- a/src/Composer/Downloader/VcsDownloader.php
+++ b/src/Composer/Downloader/VcsDownloader.php
@@ -86,7 +86,7 @@ abstract class VcsDownloader implements DownloaderInterface, ChangeReportInterfa
 
         $this->io->write("  - Updating <info>" . $name . "</info> (<comment>" . $from . "</comment> => <comment>" . $to . "</comment>)");
 
-        $this->cleanChanges($path, true, $initial);
+        $this->cleanChanges($initial, $path, true);
         try {
             $this->doUpdate($initial, $target, $path);
         } catch (\Exception $e) {
@@ -126,7 +126,7 @@ abstract class VcsDownloader implements DownloaderInterface, ChangeReportInterfa
     public function remove(PackageInterface $package, $path)
     {
         $this->io->write("  - Removing <info>" . $package->getName() . "</info> (<comment>" . $package->getPrettyVersion() . "</comment>)");
-        $this->cleanChanges($path, false, $package);
+        $this->cleanChanges($package, $path, false);
         if (!$this->filesystem->removeDirectory($path)) {
             // retry after a bit on windows since it tends to be touchy with mass removals
             if (!defined('PHP_WINDOWS_VERSION_BUILD') || (usleep(250) && !$this->filesystem->removeDirectory($path))) {
@@ -144,19 +144,19 @@ abstract class VcsDownloader implements DownloaderInterface, ChangeReportInterfa
         return $this;
     }
 
-	/**
-	 * Prompt the user to check if changes should be stashed/removed or the operation aborted
-	 *
-	 * @param string $path
-	 * @param bool $update if true (update) the changes can be stashed and reapplied after an update,
-	 *                                  if false (remove) the changes should be assumed to be lost if the operation is not aborted
-	 * @param PackageInterface $package
-	 * @throws \RuntimeException in case the operation must be aborted
-	 */
-    protected function cleanChanges($path, $update, $package)
+    /**
+     * Prompt the user to check if changes should be stashed/removed or the operation aborted
+     *
+     * @param PackageInterface $package
+     * @param string $path
+     * @param bool $update if true (update) the changes can be stashed and reapplied after an update,
+     *                                  if false (remove) the changes should be assumed to be lost if the operation is not aborted
+     * @throws \RuntimeException in case the operation must be aborted
+     */
+    protected function cleanChanges(PackageInterface $package, $path, $update)
     {
         // the default implementation just fails if there are any changes, override in child classes to provide stash-ability
-        if (null !== $this->getLocalChanges($path, $package)) {
+        if (null !== $this->getLocalChanges($package, $path)) {
             throw new \RuntimeException('Source directory ' . $path . ' has uncommitted changes.');
         }
     }