diff --git a/htdocs/core/lib/ajax.lib.php b/htdocs/core/lib/ajax.lib.php
index 6cd7a0f0381..194dd7c7925 100644
--- a/htdocs/core/lib/ajax.lib.php
+++ b/htdocs/core/lib/ajax.lib.php
@@ -130,7 +130,10 @@ function ajax_autocompleter($selected, $htmlname, $url, $urloption = '', $minLen
 											$("#search_'.$htmlnamejquery.'").val(item.value);
 											$("#'.$htmlnamejquery.'").val(item.key).trigger("change");
 										}
-										var label = item.label.toString();
+										var label = "";
+										if (item.label != null) {
+											label = item.label.toString();
+										}
 										var update = {};
 										if (options.update) {
 											$.each(options.update, function(key, value) {