diff --git a/index.php b/index.php
index e2e97267..bc621906 100644
--- a/index.php
+++ b/index.php
@@ -81,9 +81,9 @@ $whitelist_default = array(
 
 try {
 
-	Bridge::setDir(__DIR__ . '/bridges/');
-	Format::setDir(__DIR__ . '/formats/');
-	Cache::setDir(__DIR__ . '/caches/');
+	Bridge::setDir(PATH_LIB_BRIDGES);
+	Format::setDir(PATH_LIB_FORMATS);
+	Cache::setDir(PATH_LIB_CACHES);
 
 	if(!file_exists(WHITELIST_FILE)) {
 		$whitelist_selection = $whitelist_default;
diff --git a/lib/RssBridge.php b/lib/RssBridge.php
index e0186c24..c1799e10 100644
--- a/lib/RssBridge.php
+++ b/lib/RssBridge.php
@@ -2,6 +2,9 @@
 
 define('PATH_LIB', __DIR__ . '/../lib'); // Path for core library
 define('PATH_LIB_VENDOR', __DIR__ . '/../vendor'); // Path for vendor library
+define('PATH_LIB_BRIDGES', __DIR__ . '/../bridges/'); // Path to bridges library
+define('PATH_LIB_FORMATS', __DIR__ . '/../formats/'); // Path to formats library
+define('PATH_LIB_CACHES', __DIR__ . '/../caches/'); // Path to caches library
 define('PATH_CACHE', __DIR__ . '/../cache'); // Path to cache folder
 
 // Classes