diff --git a/lib/Bridge.php b/lib/Bridge.php
index a2ae9270..e0010dfb 100644
--- a/lib/Bridge.php
+++ b/lib/Bridge.php
@@ -1,5 +1,5 @@
 <?php
-require_once(__DIR__ . '/BridgeInterface.php');
+
 class Bridge {
 
 	static protected $dirBridge;
diff --git a/lib/BridgeAbstract.php b/lib/BridgeAbstract.php
index 014201c8..aa654111 100644
--- a/lib/BridgeAbstract.php
+++ b/lib/BridgeAbstract.php
@@ -1,5 +1,5 @@
 <?php
-require_once(__DIR__ . '/BridgeInterface.php');
+
 abstract class BridgeAbstract implements BridgeInterface {
 
 	const NAME = 'Unnamed bridge';
diff --git a/lib/Cache.php b/lib/Cache.php
index bc177585..88be5a1a 100644
--- a/lib/Cache.php
+++ b/lib/Cache.php
@@ -1,5 +1,5 @@
 <?php
-require_once(__DIR__ . '/CacheInterface.php');
+
 class Cache {
 
 	static protected $dirCache;
diff --git a/lib/FeedExpander.php b/lib/FeedExpander.php
index fb300da0..269de494 100644
--- a/lib/FeedExpander.php
+++ b/lib/FeedExpander.php
@@ -1,5 +1,5 @@
 <?php
-require_once(__DIR__ . '/BridgeInterface.php');
+
 abstract class FeedExpander extends BridgeAbstract {
 
 	private $name;
diff --git a/lib/Format.php b/lib/Format.php
index ab932cc7..d0e4e723 100644
--- a/lib/Format.php
+++ b/lib/Format.php
@@ -1,5 +1,5 @@
 <?php
-require_once(__DIR__ . '/FormatInterface.php');
+
 class Format {
 
 	static protected $dirFormat;
diff --git a/lib/FormatAbstract.php b/lib/FormatAbstract.php
index d36b29d4..8fb642c0 100644
--- a/lib/FormatAbstract.php
+++ b/lib/FormatAbstract.php
@@ -1,5 +1,5 @@
 <?php
-require_once(__DIR__ . '/FormatInterface.php');
+
 abstract class FormatAbstract implements FormatInterface {
 	const DEFAULT_CHARSET = 'UTF-8';
 
diff --git a/lib/RssBridge.php b/lib/RssBridge.php
index 98950c71..c0ab675f 100644
--- a/lib/RssBridge.php
+++ b/lib/RssBridge.php
@@ -8,6 +8,11 @@ define('PATH_LIB_CACHES', __DIR__ . '/../caches/'); // Path to caches library
 define('PATH_CACHE', __DIR__ . '/../cache'); // Path to cache folder
 define('REPOSITORY', 'https://github.com/RSS-Bridge/rss-bridge/');
 
+// Interfaces
+require_once PATH_LIB . 'BridgeInterface.php';
+require_once PATH_LIB . 'CacheInterface.php';
+require_once PATH_LIB . 'FormatInterface.php';
+
 // Classes
 require_once PATH_LIB . 'Exceptions.php';
 require_once PATH_LIB . 'Format.php';