diff --git a/src/utils/redirect-parser/line-parser.test.js b/src/utils/redirect-parser/line-parser.test.js
index 923dfd93c5b..2c00c7bfc0b 100644
--- a/src/utils/redirect-parser/line-parser.test.js
+++ b/src/utils/redirect-parser/line-parser.test.js
@@ -276,7 +276,7 @@ test('complicated _redirects file', t => {
 })
 
 test('long _redirects file', t => {
-  const source = fs.readFileSync('./test-files/redirects', {
+  const source = fs.readFileSync(__dirname + '/test-files/redirects', {
     encoding: 'utf-8',
   })