diff --git a/frappe/public/js/frappe/form/controls/autocomplete.js b/frappe/public/js/frappe/form/controls/autocomplete.js
index 27bf75e807..7b91a2031c 100644
--- a/frappe/public/js/frappe/form/controls/autocomplete.js
+++ b/frappe/public/js/frappe/form/controls/autocomplete.js
@@ -174,6 +174,15 @@ frappe.ui.form.ControlAutocomplete = class ControlAutoComplete extends frappe.ui
 		if (typeof options[0] === "string") {
 			options = options.map((o) => ({ label: o, value: o }));
 		}
+
+		options = options.map((o) => {
+			if (typeof o !== "string") {
+				o.label = o.label.toString();
+				o.value = o.value.toString();
+			}
+			return o;
+		});
+
 		return options;
 	}
 
diff --git a/frappe/website/doctype/web_form/web_form.py b/frappe/website/doctype/web_form/web_form.py
index fd9949c45f..75f8793b4a 100644
--- a/frappe/website/doctype/web_form/web_form.py
+++ b/frappe/website/doctype/web_form/web_form.py
@@ -631,7 +631,7 @@ def get_link_options(web_form_name, doctype, allow_read_on_all_link_options=Fals
 		if title_field and show_title_field_in_link:
 			return json.dumps(link_options, default=str)
 		else:
-			return "\n".join([doc.value for doc in link_options])
+			return "\n".join([str(doc.value) for doc in link_options])
 
 	else:
 		raise frappe.PermissionError(