diff --git a/packages/next/client/image.tsx b/packages/next/client/image.tsx
index 5752d6d900629..d8f3a21ae8afe 100644
--- a/packages/next/client/image.tsx
+++ b/packages/next/client/image.tsx
@@ -600,6 +600,7 @@ export default function Image({
               loader,
             })}
             decoding="async"
+            data-nimg
             style={imgStyle}
             className={className}
           />
@@ -609,6 +610,7 @@ export default function Image({
         {...rest}
         {...imgAttributes}
         decoding="async"
+        data-nimg
         className={className}
         ref={(img) => {
           setRef(img)
@@ -633,9 +635,9 @@ export default function Image({
             rel="preload"
             as="image"
             href={imgAttributes.srcSet ? undefined : imgAttributes.src}
-            // @ts-ignore: imagesrcset is not yet in the link element type
+            // @ts-ignore: imagesrcset is not yet in the link element type.
             imagesrcset={imgAttributes.srcSet}
-            // @ts-ignore: imagesizes is not yet in the link element type
+            // @ts-ignore: imagesizes is not yet in the link element type.
             imagesizes={imgAttributes.sizes}
           ></link>
         </Head>