diff --git a/frontend/src/Metamaps/Filter.js b/frontend/src/Metamaps/Filter.js
index f67c6ec8..59aa1bae 100644
--- a/frontend/src/Metamaps/Filter.js
+++ b/frontend/src/Metamaps/Filter.js
@@ -186,7 +186,7 @@ const Filter = {
       $('#filter_by_' + listToModify + ' li[data-id="' + identifier + '"]').fadeOut('fast', function () {
         $(this).remove()
       })
-      index = self.visible[filtersToUse].indexOf(identifier)
+      const index = self.visible[filtersToUse].indexOf(identifier)
       self.visible[filtersToUse].splice(index, 1)
     })
 
diff --git a/frontend/src/components/Header.js b/frontend/src/components/Header.js
index c8c67619..ee4184d5 100644
--- a/frontend/src/components/Header.js
+++ b/frontend/src/components/Header.js
@@ -1,9 +1,9 @@
 import React, { Component, PropTypes } from 'react'
-import { objectWithoutProperties } from '../utils'
+import _ from 'lodash'
 
 const MapLink = props => {
   const { show, text, href, linkClass } = props
-  const otherProps = objectWithoutProperties(props, ['show', 'text', 'href', 'linkClass'])
+  const otherProps = _.omit(props, ['show', 'text', 'href', 'linkClass'])
   if (!show) {
     return null
   }
diff --git a/frontend/src/utils/index.js b/frontend/src/utils/index.js
deleted file mode 100644
index 1743b9b5..00000000
--- a/frontend/src/utils/index.js
+++ /dev/null
@@ -1,9 +0,0 @@
-export const objectWithoutProperties = (obj, keys) => {
-  const target = {}
-  for (let i in obj) {
-    if (keys.indexOf(i) !== -1) continue
-    if (!Object.prototype.hasOwnProperty.call(obj, i)) continue
-    target[i] = obj[i]
-  }
-  return target
-}