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-rw-r--r--phpBB/includes/acp/acp_groups.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/phpBB/includes/acp/acp_groups.php b/phpBB/includes/acp/acp_groups.php
index 089fe4baa1..83c355540e 100644
--- a/phpBB/includes/acp/acp_groups.php
+++ b/phpBB/includes/acp/acp_groups.php
@@ -421,7 +421,7 @@ class acp_groups
*/
$validation_checks = array(
'max_recipients' => array('num', false, 0, 16777215),
- 'colour' => array('hex_colour'),
+ 'colour' => array('hex_colour', true),
);
if ($validation_error = validate_data($submit_ary, $validation_checks))