diff --git a/connect/runtime/src/test/java/org/apache/kafka/connect/runtime/AbstractWorkerSourceTaskTest.java b/connect/runtime/src/test/java/org/apache/kafka/connect/runtime/AbstractWorkerSourceTaskTest.java
index 9ac7d5cca283b..501cc72c4b22b 100644
--- a/connect/runtime/src/test/java/org/apache/kafka/connect/runtime/AbstractWorkerSourceTaskTest.java
+++ b/connect/runtime/src/test/java/org/apache/kafka/connect/runtime/AbstractWorkerSourceTaskTest.java
@@ -142,7 +142,7 @@ public class AbstractWorkerSourceTaskTest {
     private Plugins plugins;
     private WorkerConfig config;
     private SourceConnectorConfig sourceConfig;
-    private MockConnectMetrics metrics = new MockConnectMetrics();
+    private MockConnectMetrics metrics;
     @Mock private ErrorHandlingMetrics errorHandlingMetrics;
 
     private AbstractWorkerSourceTask workerTask;