diff --git a/htdocs/core/class/html.formticket.class.php b/htdocs/core/class/html.formticket.class.php
index d7cf03c41e0..c310c352690 100644
--- a/htdocs/core/class/html.formticket.class.php
+++ b/htdocs/core/class/html.formticket.class.php
@@ -368,7 +368,9 @@ class FormTicket
                                         if (response.num) {
                                             var selecthtml_str = response.value;
                                             var selecthtml_dom=$.parseHTML(selecthtml_str);
-                                            $("#inputautocomplete"+htmlname).val(selecthtml_dom[0][0].innerHTML);
+											if (typeof(selecthtml_dom[0][0]) !== \'undefined\') {
+                                            	$("#inputautocomplete"+htmlname).val(selecthtml_dom[0][0].innerHTML);
+											}
                                         } else {
                                             $("#inputautocomplete"+htmlname).val("");
                                         }
diff --git a/htdocs/core/lib/ajax.lib.php b/htdocs/core/lib/ajax.lib.php
index f8dd34ce0ac..739035f71a5 100644
--- a/htdocs/core/lib/ajax.lib.php
+++ b/htdocs/core/lib/ajax.lib.php
@@ -500,7 +500,9 @@ function ajax_combobox($htmlname, $events = array(), $minLengthToAutocomplete =
 							if (response.num) {
 								var selecthtml_str = response.value;
 								var selecthtml_dom=$.parseHTML(selecthtml_str);
-								$("#inputautocomplete"+htmlname).val(selecthtml_dom[0][0].innerHTML);
+								if (typeof(selecthtml_dom[0][0]) !== \'undefined\') {
+                                   	$("#inputautocomplete"+htmlname).val(selecthtml_dom[0][0].innerHTML);
+								}
 							} else {
 								$("#inputautocomplete"+htmlname).val("");
 							}