diff --git a/Source/Config/SplClassLoader.php b/Source/Config/SplClassLoader.php
index 07a73c2..045b762 100644
--- a/Source/Config/SplClassLoader.php
+++ b/Source/Config/SplClassLoader.php
@@ -147,7 +147,8 @@ class SplClassLoader
             if (false !== ($lastNsPos = strripos($className, $this->namespaceSeparator))) {
                 $namespace = substr($className, 0, $lastNsPos);
                 $className = substr($className, $lastNsPos + 1);
-                $fileName = str_replace($this->namespaceSeparator, DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR;
+                $fileName = str_replace($this->namespaceSeparator, DIRECTORY_SEPARATOR, $namespace);
+                $fileName .= DIRECTORY_SEPARATOR;
             }
             $fileName .= str_replace('_', DIRECTORY_SEPARATOR, $className) . $this->fileExtension;