diff --git a/modules/webaudio/ScriptProcessorNode.idl b/modules/webaudio/ScriptProcessorNode.idl
index 55c3d7f..666d273 100644
--- a/modules/webaudio/ScriptProcessorNode.idl
+++ b/modules/webaudio/ScriptProcessorNode.idl
@@ -27,7 +27,7 @@
     Conditional=WEB_AUDIO
 ] interface ScriptProcessorNode : AudioNode {
     // Rendering callback
-    [DartSuppress] attribute EventHandler onaudioprocess;
+    attribute EventHandler onaudioprocess;
 
     readonly attribute long bufferSize;