diff --git a/core/core.php b/core/core.php
index f86cd8e8..770d7e3e 100644
--- a/core/core.php
+++ b/core/core.php
@@ -28,6 +28,8 @@ class common
 	const GROUP_VISITOR = 0;
 	const GROUP_MEMBER = 1;
 	const GROUP_EDITOR = 2;
+	// Groupe MODERATOR, compatibilité avec les anciens modules :
+	const GROUP_MODERATOR = 2;
 	const GROUP_ADMIN = 3;
 	const SIGNATURE_ID = 1;
 	const SIGNATURE_PSEUDO = 2;