diff --git a/logging-modules/logback/src/test/resources/logback-test.xml b/logging-modules/logback/src/test/resources/logback-test.xml
index 89c0124738..24082a673d 100644
--- a/logging-modules/logback/src/test/resources/logback-test.xml
+++ b/logging-modules/logback/src/test/resources/logback-test.xml
@@ -19,10 +19,18 @@
         </layout>
     </appender>
 
+    <appender name="jsonEncoder" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder class="ch.qos.logback.classic.encoder.JsonEncoder"/>
+    </appender>
+
     <logger name="jsonLogger" level="TRACE">
         <appender-ref ref="json" />
     </logger>
 
+    <logger name="jsonEncoderLogger" level="TRACE">
+        <appender-ref ref="jsonEncoder" />
+    </logger>
+
     <root level="debug">
         <appender-ref ref="map" />
         <appender-ref ref="badMap" />