diff --git a/handler/src/test/java/io/netty/handler/ssl/SslHandlerTest.java b/handler/src/test/java/io/netty/handler/ssl/SslHandlerTest.java
index 30451185f3..5ef43de248 100644
--- a/handler/src/test/java/io/netty/handler/ssl/SslHandlerTest.java
+++ b/handler/src/test/java/io/netty/handler/ssl/SslHandlerTest.java
@@ -693,7 +693,8 @@ public class SslHandlerTest {
 
                                 @Override
                                 public void channelInactive(ChannelHandlerContext ctx) {
-                                    donePromise.tryFailure(new IllegalStateException("client closed"));
+                                    donePromise.tryFailure(new IllegalStateException("client closed. bytesSeen: " +
+                                                                                     bytesSeen));
                                 }
                             });
                         }