diff --git a/addons/web/static/src/core/popover/popover_hook.js b/addons/web/static/src/core/popover/popover_hook.js
index 240e94a0662..80d269980d1 100644
--- a/addons/web/static/src/core/popover/popover_hook.js
+++ b/addons/web/static/src/core/popover/popover_hook.js
@@ -27,7 +27,7 @@ export function usePopover() {
          * @param {function()}              [options.onClose]
          * @param {function()}              [options.preventClose]
          * @param {string}                  [options.popoverClass]
-         * @param {string}                  [options.position]
+         * @param {("top"|"bottom"|"left"|"right")}   [options.position]
          * @returns {function()}
          */
         add(target, Component, props, options = {}) {