diff --git a/htdocs/barcode/printsheet.php b/htdocs/barcode/printsheet.php
index 373effecbe8..f87196a93af 100644
--- a/htdocs/barcode/printsheet.php
+++ b/htdocs/barcode/printsheet.php
@@ -116,6 +116,11 @@ if ($action == 'builddoc') {
 		setEventMessages($langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("BarcodeValue")), null, 'errors');
 		$error++;
 	}
+	$MAXLENGTH = 51200;	// Limit set to 50Ko
+	if (dol_strlen($forbarcode) > $MAXLENGTH) {			// barcode value
+		setEventMessages($langs->trans("ErrorFieldTooLong", $langs->transnoentitiesnoconv("BarcodeValue")).' ('.$langs->trans("RequireXStringMax", $MAXLENGTH).')', null, 'errors');
+		$error++;
+	}
 	if (empty($fk_barcode_type)) {		// barcode type = barcode encoding
 		setEventMessages($langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("BarcodeType")), null, 'errors');
 		$error++;