diff --git a/packages/gatsby/src/cache-dir/root.js b/packages/gatsby/src/cache-dir/root.js
index 3896e9c59e20a..c008cc4932877 100644
--- a/packages/gatsby/src/cache-dir/root.js
+++ b/packages/gatsby/src/cache-dir/root.js
@@ -53,7 +53,13 @@ function shouldUpdateScroll(prevRouterProps, { location: { pathname } }) {
   return true
 }
 
-const noMatch = pages.find(r => r.path === `/dev-404-page/`)
+let noMatch
+for (let i = 0; i < paths.length; i++) {
+  if (paths[i].path === `/dev-404-page/`) {
+    noMatch = paths[i]
+    break
+  }
+}
 
 const addNotFoundRoute = () => {
   if (noMatch) {