diff --git a/engine/src/flutter/lib/web_ui/lib/painting.dart b/engine/src/flutter/lib/web_ui/lib/painting.dart
index 47705849558..58417fbacd1 100644
--- a/engine/src/flutter/lib/web_ui/lib/painting.dart
+++ b/engine/src/flutter/lib/web_ui/lib/painting.dart
@@ -747,14 +747,14 @@ Future<Codec> instantiateImageCodecWithSize(
   FrameInfo? info;
   try {
     if (getTargetSize == null) {
-      return engine.renderer.instantiateImageCodec(buffer._list!);
+      return await engine.renderer.instantiateImageCodec(buffer._list!);
     } else {
       codec = await engine.renderer.instantiateImageCodec(buffer._list!);
       info = await codec.getNextFrame();
       final int width = info.image.width;
       final int height = info.image.height;
       final TargetImageSize targetSize = getTargetSize(width, height);
-      return engine.renderer.instantiateImageCodec(
+      return await engine.renderer.instantiateImageCodec(
         buffer._list!,
         targetWidth: targetSize.width,
         targetHeight: targetSize.height,
diff --git a/engine/src/flutter/lib/web_ui/lib/src/engine/canvaskit/image.dart b/engine/src/flutter/lib/web_ui/lib/src/engine/canvaskit/image.dart
index 1bec48d6314..bc79b16a4c4 100644
--- a/engine/src/flutter/lib/web_ui/lib/src/engine/canvaskit/image.dart
+++ b/engine/src/flutter/lib/web_ui/lib/src/engine/canvaskit/image.dart
@@ -364,7 +364,7 @@ Future<Uint8List> fetchImage(String url, ui_web.ImageCodecChunkCallback? chunkCa
     }
 
     if (chunkCallback != null && contentLength != null) {
-      return readChunked(response.payload, contentLength, chunkCallback);
+      return await readChunked(response.payload, contentLength, chunkCallback);
     } else {
       return await response.asUint8List();
     }