diff --git a/engine/src/flutter/skia/flutter_defines.gni b/engine/src/flutter/skia/flutter_defines.gni
index a2ede64440d..4fd17711ff2 100644
--- a/engine/src/flutter/skia/flutter_defines.gni
+++ b/engine/src/flutter/skia/flutter_defines.gni
@@ -10,6 +10,9 @@ flutter_defines = [
   "SK_LEGACY_IGNORE_DRAW_VERTICES_BLEND_WITH_NO_SHADER",
   "SK_DISABLE_LEGACY_PARAGRAPH_UNICODE",
 
+  "SK_DISABLE_LEGACY_PNG_WRITEBUFFER",
+  "SK_DISABLE_LEGACY_IMAGE_READBUFFER",
+
   # Fast low-precision software rendering isn't a priority for Flutter.
   "SK_DISABLE_LEGACY_SHADERCONTEXT",
   "SK_DISABLE_LOWP_RASTER_PIPELINE",