diff --git a/jetty-http2/http2-server/src/main/java/org/eclipse/jetty/http2/server/HTTP2ServerConnection.java b/jetty-http2/http2-server/src/main/java/org/eclipse/jetty/http2/server/HTTP2ServerConnection.java
index a1f9ed0d394..e3092db044d 100644
--- a/jetty-http2/http2-server/src/main/java/org/eclipse/jetty/http2/server/HTTP2ServerConnection.java
+++ b/jetty-http2/http2-server/src/main/java/org/eclipse/jetty/http2/server/HTTP2ServerConnection.java
@@ -19,6 +19,7 @@
 package org.eclipse.jetty.http2.server;
 
 import java.io.Closeable;
+import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.ArrayDeque;
 import java.util.ArrayList;
@@ -177,6 +178,10 @@ public class HTTP2ServerConnection extends HTTP2Connection implements Connection
             if (task != null)
                 offerTask(task, false);
         }
+        else
+        {
+            callback.failed(new IOException("channel_not_found"));
+        }
     }
 
     public void onTrailers(IStream stream, HeadersFrame frame)