diff --git a/testsuite/src/test/java/io/netty/testsuite/transport/socket/TrafficShapingHandlerTest.java b/testsuite/src/test/java/io/netty/testsuite/transport/socket/TrafficShapingHandlerTest.java
index 6d6ce74486..b6c116b603 100644
--- a/testsuite/src/test/java/io/netty/testsuite/transport/socket/TrafficShapingHandlerTest.java
+++ b/testsuite/src/test/java/io/netty/testsuite/transport/socket/TrafficShapingHandlerTest.java
@@ -500,6 +500,7 @@ public class TrafficShapingHandlerTest extends AbstractSocketTest {
                     }
                 }
             }
+            Thread.sleep(10);
             loggerServer.debug("Step: " + step + " Write: " + nb);
             for (int i = 0; i < nb; i++) {
                 channel.write(Unpooled.copyLong(timestamp));