diff --git a/dev/logback-test.xml b/dev/logback-test.xml
index f5b9e764..1753e818 100644
--- a/dev/logback-test.xml
+++ b/dev/logback-test.xml
@@ -47,6 +47,7 @@
             </layout>
         </encoder>
     </appender>
+    <logger name="ch.qos.logback" level="WARN" />
     <logger name="org.eclipse.jetty" level="INFO" />
     <logger name="org.eclipse.jetty.server" level="WARN" />
     <logger name="org.eclipse.jetty.util.log" level="WARN" />