diff --git a/inc/functions.php b/inc/functions.php
index 5aabdef4..61b85a96 100755
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -2259,6 +2259,7 @@ function escape_markup_modifiers($string) {
 }
 
 function defined_flags_accumulate($desired_flags) {
+	global $config;
 	$output_flags = 0x0;
 	foreach ($desired_flags as $flagname) {
 		if (defined($flagname)) {