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-rw-r--r--classes/pref/labels.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/classes/pref/labels.php b/classes/pref/labels.php
index 2cdb919ce..0eb88ea36 100644
--- a/classes/pref/labels.php
+++ b/classes/pref/labels.php
@@ -160,7 +160,7 @@ class Pref_Labels extends Handler_Protected {
function add() {
$caption = clean($_REQUEST["caption"]);
- $output = clean($_REQUEST["output"]);
+ $output = clean($_REQUEST["output"] ?? false);
if ($caption) {
if (Labels::create($caption)) {