diff --git a/lib/__tests__/standalone-cache.test.js b/lib/__tests__/standalone-cache.test.js
index 36607b53ce..c743f41d30 100644
--- a/lib/__tests__/standalone-cache.test.js
+++ b/lib/__tests__/standalone-cache.test.js
@@ -8,16 +8,16 @@ const fsExtra = require("fs-promise")
 const fileExists = require("file-exists-promise")
 
 const cwd = process.cwd()
-const invalidFile = path.normalize(`${fixturesPath}/empty-block.css`)
-const validFile = path.normalize(`${fixturesPath}/cache/valid.css`)
-const newFileDest = path.normalize(`${fixturesPath}/cache/newFile.css`)
+const invalidFile = path.join(fixturesPath, "empty-block.css")
+const validFile = path.join(fixturesPath, "cache", "valid.css")
+const newFileDest = path.join(fixturesPath, "cache", "newFile.css")
 
 // Config object is getting mutated internally.
 // Return new object of the same structure to
 // make sure config doesn't change between runs.
 function getConfig() {
   return {
-    files: `${fixturesPath}/cache/*.css`,
+    files: path.join(fixturesPath, "cache", "*.css"),
     config: {
       rules: { "block-no-empty": true, "color-no-invalid-hex": true },
     },
@@ -26,7 +26,7 @@ function getConfig() {
 }
 
 describe("standalone cache", () => {
-  const expectedCacheFilePath = `${cwd}/.stylelintcache`
+  const expectedCacheFilePath = path.join(cwd, ".stylelintcache")
 
   beforeEach(() => {
     // Initial run to warm up the cache
@@ -121,9 +121,9 @@ describe("standalone cache", () => {
   })
 })
 describe("standalone cache uses cacheLocation", () => {
-  const cacheLocationFile = `${fixturesPath}/cache/.cachefile`
-  const cacheLocationDir = `${fixturesPath}/cache/`
-  const expectedCacheFilePath = `${cacheLocationDir}/.stylelintcache_${hash(cwd)}`
+  const cacheLocationFile = path.join(fixturesPath, "cache", ".cachefile")
+  const cacheLocationDir = path.join(fixturesPath, "cache")
+  const expectedCacheFilePath = path.join(cacheLocationDir, `.stylelintcache_${hash(cwd)}`)
   afterEach(() => {
     // clean up after each test
     return Promise.all([
diff --git a/lib/standalone.js b/lib/standalone.js
index 18409c1c1c..cca5b3c4e4 100644
--- a/lib/standalone.js
+++ b/lib/standalone.js
@@ -108,8 +108,7 @@ module.exports = function (options/*: Object */)/*: Promise<stylelint$standalone
     let absoluteFilePaths = filePaths.map(filePath => {
       const absoluteFilepath = (!path.isAbsolute(filePath))
         ? path.join(process.cwd(), filePath)
-        : filePath
-
+        : path.normalize(filePath)
       return absoluteFilepath
     })