diff --git a/api/print.php b/api/print.php
index d627a36f6..efe71df43 100644
--- a/api/print.php
+++ b/api/print.php
@@ -97,7 +97,11 @@ function applyQR($sourceResource, $qrPath, $x, $y) {
 
         list($qrWidth, $qrHeight) = getimagesize($filename_codes);
 
-        $offset = $config['print']['qrOffset'];
+        if (is_numeric($config['print']['qrOffset'])) {
+            $offset = $config['print']['qrOffset'];
+        } else {
+            $offset = 10;
+        }
 
         switch ($config['print']['qrPosition']) {
             case 'topLeft':