diff --git a/lib/fp/mapping.js b/lib/fp/mapping.js
index 66e98616c..6286eacfc 100644
--- a/lib/fp/mapping.js
+++ b/lib/fp/mapping.js
@@ -79,7 +79,7 @@ module.exports = {
       'memoize,method,methodOf,mixin,rest,reverse,round,runInContext,template,trim,' +
       'trimLeft,trimRight,uniqueId,words').split(','),
     2: (
-      'add,ary,assign,at,bind,bindKey,cloneDeepWith,cloneWith,countBy,curryN,' +
+      'add,ary,assign,at,bind,bindKey,cloneDeepWith,cloneWith,concat,countBy,curryN,' +
       'debounce,defaults,defaultsDeep,delay,difference,drop,dropRight,dropRightWhile,' +
       'dropWhile,endsWith,every,extend,filter,find,find,findIndex,findKey,findLast,' +
       'findLastIndex,findLastKey,forEach,forEachRight,forIn,forInRight,forOwn,' +