diff --git a/autoload.php b/autoload.php
index e95de2c..83df138 100644
--- a/autoload.php
+++ b/autoload.php
@@ -75,7 +75,7 @@ function db_filter($array, $index)
 {
 	$new_array = array();
 
-	foreach($array as $a)
+	foreach($array as &$a)
 	{
 		$new_array[] = $a[$index];
 	}
diff --git a/tests/db_files/FB_TEST_DB.FDB b/tests/db_files/FB_TEST_DB.FDB
index d4195a1..05ddb62 100644
Binary files a/tests/db_files/FB_TEST_DB.FDB and b/tests/db_files/FB_TEST_DB.FDB differ