diff --git a/packages/next/src/build/babel/loader/get-config.ts b/packages/next/src/build/babel/loader/get-config.ts
index 77ba73f2aa668..c4a8566ac5da9 100644
--- a/packages/next/src/build/babel/loader/get-config.ts
+++ b/packages/next/src/build/babel/loader/get-config.ts
@@ -273,10 +273,7 @@ function getFreshConfig(
       return false
     }
 
-    if (
-      filename.includes('/node_modules/') ||
-      filename.includes('\\node_modules\\')
-    ) {
+    if (/[/\\]node_modules[/\\]/.test(filename)) {
       return false
     }