diff --git a/src/utils/rules-proxy.js b/src/utils/rules-proxy.js
index d12a9af9615..6a81e95ad18 100644
--- a/src/utils/rules-proxy.js
+++ b/src/utils/rules-proxy.js
@@ -57,15 +57,11 @@ function getCountry(req) {
 
 module.exports = function createRewriter({ distDir, projectDir, jwtSecret, jwtRole, configPath }) {
   let matcher = null
-  const configFiles = Array.from(
-    new Set(
-      [
-        path.resolve(distDir, '_redirects'),
-        path.resolve(projectDir, '_redirects'),
-      ]
-        .concat(configPath ? path.resolve(configPath) : [])
-    )
-  ).filter(f => f !== projectDir && fs.existsSync(f))
+  const configFiles = Array.from(new Set([
+    path.resolve(configPath),
+    path.resolve(distDir, '_redirects'),
+    path.resolve(projectDir, '_redirects'),
+  ])).filter(f => fs.existsSync(f))
   let rules = []
 
   onChanges(configFiles, async () => {