diff --git a/src/Composer/Autoload/AutoloadGenerator.php b/src/Composer/Autoload/AutoloadGenerator.php
index c6bf5e475..deaa69197 100644
--- a/src/Composer/Autoload/AutoloadGenerator.php
+++ b/src/Composer/Autoload/AutoloadGenerator.php
@@ -320,7 +320,7 @@ EOF;
         }
 
         if (preg_match('/\.phar$/', $path)){
-            $baseDir = "'phar://' . '" . $baseDir;
+            $baseDir = "'phar://' . " . $baseDir;
         }
 
         return $baseDir.var_export($path, true);