diff --git a/src/Concise/Version.php b/src/Concise/Version.php
index e25a2ee5..44c6fbe2 100644
--- a/src/Concise/Version.php
+++ b/src/Concise/Version.php
@@ -4,9 +4,11 @@
 
 class Version
 {
-    public function findVendorFolder()
+    public function findVendorFolder($path = null)
     {
-        $path = __DIR__;
+        if (null === $path) {
+            $path = __DIR__;
+        }
         for ($i = 0; $i < 10; ++$i) {
             $dir = scandir($path);
             if (in_array('vendor', $dir)) {
@@ -14,6 +16,8 @@ public function findVendorFolder()
             }
             $path .= "/..";
         }
+
+        return null;
     }
 
     public function getVersionForPackage($packageName)
diff --git a/tests/Concise/VersionTest.php b/tests/Concise/VersionTest.php
index 3fd6efae..cdb461d7 100644
--- a/tests/Concise/VersionTest.php
+++ b/tests/Concise/VersionTest.php
@@ -37,4 +37,12 @@ public function testReturnEmptyStringIfVendorFolderCannotBeFound()
                         ->done();
         $this->assert($version->getConciseVersion(), is_blank);
     }
+
+    public function testFindVendorFolderWillReturnNullIfTheVendorFolderCouldNotBeFound()
+    {
+        $version = $this->niceMock('Concise\Version')
+                        ->expose('findVendorFolder')
+                        ->done();
+        $this->assert($version->findVendorFolder('/tmp'), is_null);
+    }
 }