diff --git a/packages/next/src/server/app-render/get-layer-assets.tsx b/packages/next/src/server/app-render/get-layer-assets.tsx
index 336f3afc9c455..1f56bcb66f0ca 100644
--- a/packages/next/src/server/app-render/get-layer-assets.tsx
+++ b/packages/next/src/server/app-render/get-layer-assets.tsx
@@ -97,7 +97,7 @@ export function getLayerAssets({
     ? scriptTags.map((href, index) => {
         const fullSrc = `${ctx.assetPrefix}/_next/${href}`
 
-        return <script src={fullSrc} async={true} key={index} />
+        return <script src={fullSrc} async={true} key={`script-${index}`} />
       })
     : []