diff --git a/transport/src/test/java/io/netty/channel/DefaultChannelPipelineTest.java b/transport/src/test/java/io/netty/channel/DefaultChannelPipelineTest.java
index 2dd3d9701c..086d0d433c 100644
--- a/transport/src/test/java/io/netty/channel/DefaultChannelPipelineTest.java
+++ b/transport/src/test/java/io/netty/channel/DefaultChannelPipelineTest.java
@@ -150,8 +150,11 @@ public class DefaultChannelPipelineTest {
         assertSame(pipeline.get("handler3"), handler3);
 
         pipeline.remove(handler1);
+        assertNull(pipeline.get("handler1"));
         pipeline.remove(handler2);
+        assertNull(pipeline.get("handler2"));
         pipeline.remove(handler3);
+        assertNull(pipeline.get("handler3"));
     }
 
     @Test