diff --git a/skia/flutter_defines.gni b/skia/flutter_defines.gni
index 83e6433ab8043..0b40a0f7c0eed 100644
--- a/skia/flutter_defines.gni
+++ b/skia/flutter_defines.gni
@@ -13,6 +13,7 @@ flutter_defines = [
   "SK_LEGACY_IGNORE_DRAW_VERTICES_BLEND_WITH_NO_SHADER",
   "SK_DISABLE_LEGACY_METAL_BACKEND_SURFACE",
   "SK_DISABLE_LEGACY_PARAGRAPH_UNICODE",
+  "SK_USE_LEGACY_BLUR_RASTER",
 
   # Fast low-precision software rendering isn't a priority for Flutter.
   "SK_DISABLE_LEGACY_SHADERCONTEXT",