diff --git a/codec-http2/src/main/java/io/netty/handler/codec/http2/Http2MultiplexCodec.java b/codec-http2/src/main/java/io/netty/handler/codec/http2/Http2MultiplexCodec.java
index d9b28473f1..fe38382962 100644
--- a/codec-http2/src/main/java/io/netty/handler/codec/http2/Http2MultiplexCodec.java
+++ b/codec-http2/src/main/java/io/netty/handler/codec/http2/Http2MultiplexCodec.java
@@ -273,7 +273,7 @@ public class Http2MultiplexCodec extends Http2FrameCodec {
             forEachActiveStream(AbstractHttp2StreamChannel.WRITABLE_VISITOR);
         }
 
-        ctx.fireChannelWritabilityChanged();
+        super.channelWritabilityChanged(ctx);
     }
 
     final void flush0(ChannelHandlerContext ctx) {