diff --git a/dibi/libs/interfaces.php b/dibi/libs/interfaces.php
index bbf5894f..2034e256 100644
--- a/dibi/libs/interfaces.php
+++ b/dibi/libs/interfaces.php
@@ -85,15 +85,6 @@ interface IDibiDriver
 
 
 
-	/**
-	 * Returns TRUE when connection was established.
-	 *
-	 * @return bool
-	 */
-	function isConnected();
-
-
-
 	/**
 	 * Internal: Executes the SQL query.
 	 *