diff --git a/engine/src/flutter/lib/web_ui/dev/steps/compile_bundle_step.dart b/engine/src/flutter/lib/web_ui/dev/steps/compile_bundle_step.dart
index 4d4c8badaab..1347a690992 100644
--- a/engine/src/flutter/lib/web_ui/dev/steps/compile_bundle_step.dart
+++ b/engine/src/flutter/lib/web_ui/dev/steps/compile_bundle_step.dart
@@ -263,6 +263,7 @@ class Dart2WasmCompiler extends TestCompiler {
 
       '--libraries-spec=${environment.dartSdkDir.path}/lib/libraries.json',
       '--enable-asserts',
+      '--enable-experimental-ffi',
       '--enable-experimental-wasm-interop',
 
       '-DFLUTTER_WEB_USE_SKIA=${renderer == Renderer.canvaskit}',