diff --git a/lodash.js b/lodash.js
index f71afa301..724e4f573 100644
--- a/lodash.js
+++ b/lodash.js
@@ -4908,6 +4908,7 @@
      *    64 - `_.partialRight`
      *   128 - `_.rearg`
      *   256 - `_.ary`
+     *   512 - `_.flip`
      * @param {*} [thisArg] The `this` binding of `func`.
      * @param {Array} [partials] The arguments to be partially applied.
      * @param {Array} [holders] The `partials` placeholder indexes.