diff --git a/client/plugins/fcc-create-nav-data/create-navigation-node.js b/client/plugins/fcc-create-nav-data/create-navigation-node.js
index b2e1617f33..b6ba69c520 100644
--- a/client/plugins/fcc-create-nav-data/create-navigation-node.js
+++ b/client/plugins/fcc-create-nav-data/create-navigation-node.js
@@ -13,6 +13,7 @@ const guideDir = `../../../${
 }/${locale}`;
 
 const pagesDir = path.resolve(__dirname, guideDir);
+const indexMdRe = new RegExp(`\\${path.sep}index.md$`);
 
 function withGuidePrefix(str) {
   return `/guide${str}`;
@@ -26,10 +27,9 @@ exports.createNavigationNode = function createNavigationNode(node) {
     parent
   } = node;
 
-  const nodeDir = fileAbsolutePath.replace(/\/index\.md$/, '');
-  const dashedName = nodeDir.split('/').slice(-1)[0];
-  const [, nodePath] = nodeDir.split(pagesDir);
-
+  const nodeDir = path.resolve(fileAbsolutePath).replace(indexMdRe, '');
+  const dashedName = nodeDir.split(path.sep).slice(-1)[0];
+  const nodePath = nodeDir.split(pagesDir)[1].split(path.sep).join('/');
   const parentPath = nodePath
     .split('/')
     .slice(0, -1)
diff --git a/curriculum/getChallenges.js b/curriculum/getChallenges.js
index ff4c51df97..f68826e0a0 100644
--- a/curriculum/getChallenges.js
+++ b/curriculum/getChallenges.js
@@ -47,6 +47,7 @@ async function buildCurriculum(file, curriculum) {
     challengeBlock = curriculum[superBlock].blocks[block];
   } catch (e) {
     console.log(superBlock, block);
+    // eslint-disable-next-line no-process-exit
     process.exit(0);
   }
   const { meta } = challengeBlock;
@@ -64,7 +65,7 @@ async function buildCurriculum(file, curriculum) {
 }
 
 function superBlockInfoFromPath(filePath) {
-  const [maybeSuper] = filePath.split('/');
+  const [maybeSuper] = filePath.split(path.sep);
   return superBlockInfo(maybeSuper);
 }
 
@@ -82,6 +83,6 @@ function superBlockInfo(fileName) {
 }
 
 function getBlockNameFromPath(filePath) {
-  const [, block] = filePath.split('/');
+  const [, block] = filePath.split(path.sep);
   return block;
 }