diff --git a/src/lib/urlHelper.js b/src/lib/urlHelper.js
index da81ec7e..a0581a4a 100644
--- a/src/lib/urlHelper.js
+++ b/src/lib/urlHelper.js
@@ -1,6 +1,6 @@
 import url from 'url';
 import sanitizeFilename from 'sanitize-filename';
-import { isString, escapeRegExp } from 'lodash';
+import { isString, escapeRegExp, flow, partialRight } from 'lodash';
 
 function getUrl(url, direct) {
   return `${ direct ? '/#' : '' }${ url }`;
@@ -33,18 +33,22 @@ export function sanitizeIRI(str, { replacement }) {
 export function sanitizeSlug(str, { replacement = '-' }) {
   if (!isString(str)) throw "`sanitizeSlug` only accepts strings as input.";
   if (!isString(replacement)) throw "the `sanitizeSlug` replacement character must be a string.";
-  let slug = str;
-
+  
   // Sanitize as IRI (i18n URI) and as filename.
-  slug = sanitizeIRI(slug, {replacement});
-  slug = sanitizeFilename(slug, {replacement});
-
+  const sanitize = flow([
+    partialRight(sanitizeIRI, { replacement }),
+    partialRight(sanitizeFilename, { replacement }),
+  ]);
+  const sanitizedSlug = sanitize(str);
+  
   // Remove any doubled or trailing replacement characters (that were added in the sanitizers).
   const doubleReplacement = new RegExp('(?:' + escapeRegExp(replacement) + ')+', 'g');
-  const trailingReplacment = new RegExp(escapeRegExp(replacement) + '$')
-  slug = slug.replace(doubleReplacement, '-').replace(trailingReplacment, '');
+  const trailingReplacment = new RegExp(escapeRegExp(replacement) + '$');
+  const normalizedSlug = sanitizedSlug
+    .replace(doubleReplacement, '-')
+    .replace(trailingReplacment, '');
 
-  return slug;
+  return normalizedSlug;
 }
 
 export function urlize(string) {