diff --git a/packages/next/build/webpack/plugins/flight-client-entry-plugin.ts b/packages/next/build/webpack/plugins/flight-client-entry-plugin.ts
index bb781e778b3b..c048c8b90817 100644
--- a/packages/next/build/webpack/plugins/flight-client-entry-plugin.ts
+++ b/packages/next/build/webpack/plugins/flight-client-entry-plugin.ts
@@ -189,7 +189,7 @@ export class FlightClientEntryPlugin {
             dependency: layoutOrPageDependency,
           })
 
-        const isAbsoluteRequest = layoutOrPageRequest[0] === '/'
+        const isAbsoluteRequest = path.isAbsolute(layoutOrPageRequest)
 
         // Next.js internals are put into a separate entry.
         if (!isAbsoluteRequest) {
diff --git a/packages/next/build/webpack/plugins/flight-manifest-plugin.ts b/packages/next/build/webpack/plugins/flight-manifest-plugin.ts
index 99859a5bc437..00aefb985d64 100644
--- a/packages/next/build/webpack/plugins/flight-manifest-plugin.ts
+++ b/packages/next/build/webpack/plugins/flight-manifest-plugin.ts
@@ -201,7 +201,7 @@ export class FlightManifestPlugin {
               },
             }
           } else {
-            // It is possible that there are mtuliepl modules with the same resouce,
+            // It is possible that there are multiple modules with the same resource,
             // e.g. extracted by mini-css-extract-plugin. In that case we need to
             // merge the chunks.
             manifest[resource].default.chunks = [