diff --git a/src/Composer/Autoload/AutoloadGenerator.php b/src/Composer/Autoload/AutoloadGenerator.php
index b574e7f62..1e62a1122 100644
--- a/src/Composer/Autoload/AutoloadGenerator.php
+++ b/src/Composer/Autoload/AutoloadGenerator.php
@@ -90,13 +90,13 @@ EOF;
             $prefixes = implode(', ', array_map(function ($prefix) {
                 return var_export($prefix, true);
             }, array_keys($mainAutoload['psr-0'])));
-            $baseDirFromVendorDirCode = $filesystem->findShortestPathCode($vendorPath, getcwd(), true);
+            $baseDirFromTargetDirCode = $filesystem->findShortestPathCode($targetDir, getcwd(), true);
 
             $targetDirLoader = <<<EOF
 
     public static function autoload(\$class)
     {
-        \$dir = $baseDirFromVendorDirCode . '/';
+        \$dir = $baseDirFromTargetDirCode . '/';
         \$prefixes = array($prefixes);
         foreach (\$prefixes as \$prefix) {
             if (0 !== strpos(\$class, \$prefix)) {
@@ -136,8 +136,8 @@ EOF;
         if ($includePathFile = $this->getIncludePathsFile($packageMap, $filesystem, $relVendorPath, $vendorPath, $vendorPathCode, $appBaseDirCode)) {
             file_put_contents($targetDir.'/include_paths.php', $includePathFile);
         }
-        file_put_contents($vendorPath.'/autoload.php', $this->getAutoloadFile($suffix));
-        file_put_contents($vendorPath.'/autoload_real'.$suffix.'.php', $this->getAutoloadRealFile($vendorPathToTargetDirCode, true, true, (bool) $includePathFile, $targetDirLoader, $filesCode, $suffix));
+        file_put_contents($vendorPath.'/autoload.php', $this->getAutoloadFile($vendorPathToTargetDirCode, $suffix));
+        file_put_contents($targetDir.'/autoload_real'.$suffix.'.php', $this->getAutoloadRealFile(true, true, (bool) $includePathFile, $targetDirLoader, $filesCode, $suffix));
         copy(__DIR__.'/ClassLoader.php', $targetDir.'/ClassLoader.php');
     }
 
@@ -279,7 +279,7 @@ EOF;
         return $baseDir.var_export($path, true);
     }
 
-    protected function getAutoloadFile($suffix)
+    protected function getAutoloadFile($vendorPathToTargetDirCode, $suffix)
     {
 
 
@@ -288,20 +288,21 @@ EOF;
 
 // autoload.php generated by Composer
 
-require_once 'autoload_real$suffix.php';
+require_once $vendorPathToTargetDirCode . '/autoload_real$suffix.php';
 
 return ComposerAutoloaderInit$suffix::getLoader();
 
 AUTOLOAD;
     }
 
-    protected function getAutoloadRealFile($vendorPathToTargetDirCode, $usePSR0, $useClassMap, $useIncludePath, $targetDirLoader, $filesCode, $suffix)
+    protected function getAutoloadRealFile($usePSR0, $useClassMap, $useIncludePath, $targetDirLoader, $filesCode, $suffix)
     {
         // TODO the class ComposerAutoloaderInit should be revert to a closure
         // when APC has been fixed:
         // - https://github.com/composer/composer/issues/959
         // - https://bugs.php.net/bug.php?id=52144
         // - https://bugs.php.net/bug.php?id=61576
+        // - https://bugs.php.net/bug.php?id=59298
 
         if ($filesCode) {
             $filesCode = "\n".$filesCode;
@@ -312,7 +313,7 @@ AUTOLOAD;
 
 // autoload_real$suffix.php generated by Composer
 if (!class_exists('Composer\\\\Autoload\\\\ClassLoader', false)) {
-    require $vendorPathToTargetDirCode . '/ClassLoader.php';
+    require __DIR__ . '/ClassLoader.php';
 }
 
 class ComposerAutoloaderInit$suffix
@@ -320,14 +321,13 @@ class ComposerAutoloaderInit$suffix
     public static function getLoader()
     {
         \$loader = new \\Composer\\Autoload\\ClassLoader();
-        \$composerDir = $vendorPathToTargetDirCode;
 
 
 HEADER;
 
         if ($useIncludePath) {
             $file .= <<<'INCLUDE_PATH'
-        $includePaths = require $composerDir . '/include_paths.php';
+        $includePaths = require __DIR__ . '/include_paths.php';
         array_push($includePaths, get_include_path());
         set_include_path(join(PATH_SEPARATOR, $includePaths));
 
@@ -337,7 +337,7 @@ INCLUDE_PATH;
 
         if ($usePSR0) {
             $file .= <<<'PSR0'
-        $map = require $composerDir . '/autoload_namespaces.php';
+        $map = require __DIR__ . '/autoload_namespaces.php';
         foreach ($map as $namespace => $path) {
             $loader->add($namespace, $path);
         }
@@ -348,7 +348,7 @@ PSR0;
 
         if ($useClassMap) {
             $file .= <<<'CLASSMAP'
-        $classMap = require $composerDir . '/autoload_classmap.php';
+        $classMap = require __DIR__ . '/autoload_classmap.php';
         if ($classMap) {
             $loader->addClassMap($classMap);
         }
diff --git a/tests/Composer/Test/Autoload/AutoloadGeneratorTest.php b/tests/Composer/Test/Autoload/AutoloadGeneratorTest.php
index b821b126d..aaaecbff1 100644
--- a/tests/Composer/Test/Autoload/AutoloadGeneratorTest.php
+++ b/tests/Composer/Test/Autoload/AutoloadGeneratorTest.php
@@ -159,7 +159,7 @@ class AutoloadGeneratorTest extends TestCase
 
         $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', 'TargetDir');
         $this->assertFileEquals(__DIR__.'/Fixtures/autoload_target_dir.php', $this->vendorDir.'/autoload.php');
-        $this->assertFileEquals(__DIR__.'/Fixtures/autoload_real_target_dir.php', $this->vendorDir.'/autoload_realTargetDir.php');
+        $this->assertFileEquals(__DIR__.'/Fixtures/autoload_real_target_dir.php', $this->vendorDir.'/composer/autoload_realTargetDir.php');
     }
 
     public function testVendorsAutoloading()
@@ -276,7 +276,7 @@ class AutoloadGeneratorTest extends TestCase
 
         $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', 'FilesAutoload');
         $this->assertFileEquals(__DIR__.'/Fixtures/autoload_functions.php', $this->vendorDir.'/autoload.php');
-        $this->assertFileEquals(__DIR__.'/Fixtures/autoload_real_functions.php', $this->vendorDir.'/autoload_realFilesAutoload.php');
+        $this->assertFileEquals(__DIR__.'/Fixtures/autoload_real_functions.php', $this->vendorDir.'/composer/autoload_realFilesAutoload.php');
 
         include $this->vendorDir . '/autoload.php';
         $this->assertTrue(function_exists('testFilesAutoloadGeneration1'));
diff --git a/tests/Composer/Test/Autoload/Fixtures/autoload_functions.php b/tests/Composer/Test/Autoload/Fixtures/autoload_functions.php
index fd0056060..3fd5eebed 100644
--- a/tests/Composer/Test/Autoload/Fixtures/autoload_functions.php
+++ b/tests/Composer/Test/Autoload/Fixtures/autoload_functions.php
@@ -2,6 +2,6 @@
 
 // autoload.php generated by Composer
 
-require_once 'autoload_realFilesAutoload.php';
+require_once __DIR__ . '/composer' . '/autoload_realFilesAutoload.php';
 
 return ComposerAutoloaderInitFilesAutoload::getLoader();
diff --git a/tests/Composer/Test/Autoload/Fixtures/autoload_real_functions.php b/tests/Composer/Test/Autoload/Fixtures/autoload_real_functions.php
index 01cb7b9f0..90451e69c 100644
--- a/tests/Composer/Test/Autoload/Fixtures/autoload_real_functions.php
+++ b/tests/Composer/Test/Autoload/Fixtures/autoload_real_functions.php
@@ -2,7 +2,7 @@
 
 // autoload_realFilesAutoload.php generated by Composer
 if (!class_exists('Composer\\Autoload\\ClassLoader', false)) {
-    require __DIR__ . '/composer' . '/ClassLoader.php';
+    require __DIR__ . '/ClassLoader.php';
 }
 
 class ComposerAutoloaderInitFilesAutoload
@@ -10,14 +10,13 @@ class ComposerAutoloaderInitFilesAutoload
     public static function getLoader()
     {
         $loader = new \Composer\Autoload\ClassLoader();
-        $composerDir = __DIR__ . '/composer';
 
-        $map = require $composerDir . '/autoload_namespaces.php';
+        $map = require __DIR__ . '/autoload_namespaces.php';
         foreach ($map as $namespace => $path) {
             $loader->add($namespace, $path);
         }
 
-        $classMap = require $composerDir . '/autoload_classmap.php';
+        $classMap = require __DIR__ . '/autoload_classmap.php';
         if ($classMap) {
             $loader->addClassMap($classMap);
         }
diff --git a/tests/Composer/Test/Autoload/Fixtures/autoload_real_target_dir.php b/tests/Composer/Test/Autoload/Fixtures/autoload_real_target_dir.php
index 147b3366b..1e4f7178c 100644
--- a/tests/Composer/Test/Autoload/Fixtures/autoload_real_target_dir.php
+++ b/tests/Composer/Test/Autoload/Fixtures/autoload_real_target_dir.php
@@ -2,7 +2,7 @@
 
 // autoload_realTargetDir.php generated by Composer
 if (!class_exists('Composer\\Autoload\\ClassLoader', false)) {
-    require __DIR__ . '/composer' . '/ClassLoader.php';
+    require __DIR__ . '/ClassLoader.php';
 }
 
 class ComposerAutoloaderInitTargetDir
@@ -10,14 +10,13 @@ class ComposerAutoloaderInitTargetDir
     public static function getLoader()
     {
         $loader = new \Composer\Autoload\ClassLoader();
-        $composerDir = __DIR__ . '/composer';
 
-        $map = require $composerDir . '/autoload_namespaces.php';
+        $map = require __DIR__ . '/autoload_namespaces.php';
         foreach ($map as $namespace => $path) {
             $loader->add($namespace, $path);
         }
 
-        $classMap = require $composerDir . '/autoload_classmap.php';
+        $classMap = require __DIR__ . '/autoload_classmap.php';
         if ($classMap) {
             $loader->addClassMap($classMap);
         }
@@ -31,7 +30,7 @@ class ComposerAutoloaderInitTargetDir
 
     public static function autoload($class)
     {
-        $dir = dirname(__DIR__) . '/';
+        $dir = dirname(dirname(__DIR__)) . '/';
         $prefixes = array('Main\\Foo', 'Main\\Bar');
         foreach ($prefixes as $prefix) {
             if (0 !== strpos($class, $prefix)) {
diff --git a/tests/Composer/Test/Autoload/Fixtures/autoload_target_dir.php b/tests/Composer/Test/Autoload/Fixtures/autoload_target_dir.php
index 8a75cc68a..f08c19b96 100644
--- a/tests/Composer/Test/Autoload/Fixtures/autoload_target_dir.php
+++ b/tests/Composer/Test/Autoload/Fixtures/autoload_target_dir.php
@@ -2,6 +2,6 @@
 
 // autoload.php generated by Composer
 
-require_once 'autoload_realTargetDir.php';
+require_once __DIR__ . '/composer' . '/autoload_realTargetDir.php';
 
 return ComposerAutoloaderInitTargetDir::getLoader();