diff --git a/packages/gallery/src/components/item/imageRenderer.js b/packages/gallery/src/components/item/imageRenderer.js
index 6d2905b7c..f12d4be77 100644
--- a/packages/gallery/src/components/item/imageRenderer.js
+++ b/packages/gallery/src/components/item/imageRenderer.js
@@ -13,11 +13,19 @@ const ImageRenderer = (props) => {
         id={`multi_picture_${props.id}`}
         key={`multi_picture_${props.id}`}
       >
-        {props.src.map((src) =>
+        {props.src.map((src, index) =>
           src.forPrinting ? (
-            <PrintOnlyImageSource srcSet={src.dpr} type={`image/${src.type}`} />
+            <PrintOnlyImageSource
+              key={`print-only-image-${index}`}
+              srcSet={src.dpr}
+              type={`image/${src.type}`}
+            />
           ) : (
-            <source srcSet={src.dpr || src.url} type={`image/${src.type}`} />
+            <source
+              key={`image-source-${index}`}
+              srcSet={src.dpr || src.url}
+              type={`image/${src.type}`}
+            />
           )
         )}
         <img