diff --git a/packages/commerce/src/config.cjs b/packages/commerce/src/config.cjs
index add0061a9..3f1ac9ffa 100644
--- a/packages/commerce/src/config.cjs
+++ b/packages/commerce/src/config.cjs
@@ -16,7 +16,7 @@ function withCommerceConfig(nextConfig = {}) {
     )
   }
 
-  const commerceNextConfig = importCwd(path.join(provider, 'next.config'))
+  const commerceNextConfig = importCwd(path.posix.join(provider, 'next.config'))
   const config = merge(nextConfig, commerceNextConfig)
   const features = merge(
     config.commerce.features,